Home / 257,981.16-386,822.28-100,024.68

Finding the Fourth Proportional to 257,981.16, 386,822.28 and 100,024.68

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Solution

The fourth proportional to 257,981.16, 386,822.28 and 100,024.68 is: 149,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,981.16 : 386,822.28 = 100,024.68 : x
  2. Step 2: Convert to fraction form
    257,981.16/386,822.28 = 100,024.68/x
  3. Step 3: Cross multiply
    257,981.16x = 386,822.28 × 100,024.68
  4. Step 4: Simplify right side
    257,981.16x = 38,691,774,773.87
  5. Step 5: Solve for x
    x = 38,691,774,773.87/257,981.16
  6. Step 6: Final answer
    x = 149,979.07

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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.