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Finding the Fourth Proportional to 217,212.60, 325,818.90 and 146,710.20

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Solution

The fourth proportional to 217,212.60, 325,818.90 and 146,710.20 is: 220,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,212.60 : 325,818.90 = 146,710.20 : x
  2. Step 2: Convert to fraction form
    217,212.60/325,818.90 = 146,710.20/x
  3. Step 3: Cross multiply
    217,212.60x = 325,818.90 × 146,710.20
  4. Step 4: Simplify right side
    217,212.60x = 47,800,955,982.78
  5. Step 5: Solve for x
    x = 47,800,955,982.78/217,212.60
  6. Step 6: Final answer
    x = 220,065.30

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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.