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Finding the Fourth Proportional to 614,616.16, 921,711.03 and 215,248.12

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Solution

The fourth proportional to 614,616.16, 921,711.03 and 215,248.12 is: 322,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,616.16 : 921,711.03 = 215,248.12 : x
  2. Step 2: Convert to fraction form
    614,616.16/921,711.03 = 215,248.12/x
  3. Step 3: Cross multiply
    614,616.16x = 921,711.03 × 215,248.12
  4. Step 4: Simplify right side
    614,616.16x = 198,396,566,390.76
  5. Step 5: Solve for x
    x = 198,396,566,390.76/614,616.16
  6. Step 6: Final answer
    x = 322,797.51

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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.