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Finding the Fourth Proportional to 510,839.74, 766,257.45 and 155,852.56

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Solution

The fourth proportional to 510,839.74, 766,257.45 and 155,852.56 is: 233,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,839.74 : 766,257.45 = 155,852.56 : x
  2. Step 2: Convert to fraction form
    510,839.74/766,257.45 = 155,852.56/x
  3. Step 3: Cross multiply
    510,839.74x = 766,257.45 × 155,852.56
  4. Step 4: Simplify right side
    510,839.74x = 119,423,185,201.57
  5. Step 5: Solve for x
    x = 119,423,185,201.57/510,839.74
  6. Step 6: Final answer
    x = 233,778.18

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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.