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Finding the Fourth Proportional to 255,039.53, 382,545.41 and 77,532.68

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Solution

The fourth proportional to 255,039.53, 382,545.41 and 77,532.68 is: 116,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,039.53 : 382,545.41 = 77,532.68 : x
  2. Step 2: Convert to fraction form
    255,039.53/382,545.41 = 77,532.68/x
  3. Step 3: Cross multiply
    255,039.53x = 382,545.41 × 77,532.68
  4. Step 4: Simplify right side
    255,039.53x = 29,659,768,558.61
  5. Step 5: Solve for x
    x = 29,659,768,558.61/255,039.53
  6. Step 6: Final answer
    x = 116,294.79

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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.