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Finding the Fourth Proportional to 216,865.76, 299,306.16 and 124,967.16

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Solution

The fourth proportional to 216,865.76, 299,306.16 and 124,967.16 is: 172,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,865.76 : 299,306.16 = 124,967.16 : x
  2. Step 2: Convert to fraction form
    216,865.76/299,306.16 = 124,967.16/x
  3. Step 3: Cross multiply
    216,865.76x = 299,306.16 × 124,967.16
  4. Step 4: Simplify right side
    216,865.76x = 37,403,440,785.71
  5. Step 5: Solve for x
    x = 37,403,440,785.71/216,865.76
  6. Step 6: Final answer
    x = 172,472.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.