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Finding the Fourth Proportional to 572,337.40, 858,117.30 and 217,298.20

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Solution

The fourth proportional to 572,337.40, 858,117.30 and 217,298.20 is: 325,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,337.40 : 858,117.30 = 217,298.20 : x
  2. Step 2: Convert to fraction form
    572,337.40/858,117.30 = 217,298.20/x
  3. Step 3: Cross multiply
    572,337.40x = 858,117.30 × 217,298.20
  4. Step 4: Simplify right side
    572,337.40x = 186,467,344,678.86
  5. Step 5: Solve for x
    x = 186,467,344,678.86/572,337.40
  6. Step 6: Final answer
    x = 325,799.69

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.