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Finding the Fourth Proportional to 171,173.72, 256,785.18 and 52,854.20

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Solution

The fourth proportional to 171,173.72, 256,785.18 and 52,854.20 is: 79,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,173.72 : 256,785.18 = 52,854.20 : x
  2. Step 2: Convert to fraction form
    171,173.72/256,785.18 = 52,854.20/x
  3. Step 3: Cross multiply
    171,173.72x = 256,785.18 × 52,854.20
  4. Step 4: Simplify right side
    171,173.72x = 13,572,175,260.76
  5. Step 5: Solve for x
    x = 13,572,175,260.76/171,173.72
  6. Step 6: Final answer
    x = 79,288.90

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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.