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Finding the Fourth Proportional to 508,756.29, 763,150.71 and 255,898.70

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Solution

The fourth proportional to 508,756.29, 763,150.71 and 255,898.70 is: 383,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,756.29 : 763,150.71 = 255,898.70 : x
  2. Step 2: Convert to fraction form
    508,756.29/763,150.71 = 255,898.70/x
  3. Step 3: Cross multiply
    508,756.29x = 763,150.71 × 255,898.70
  4. Step 4: Simplify right side
    508,756.29x = 195,289,270,777.32
  5. Step 5: Solve for x
    x = 195,289,270,777.32/508,756.29
  6. Step 6: Final answer
    x = 383,856.23

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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.