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Finding the Fourth Proportional to 423,034.29, 634,235.85 and 254,515.13

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Solution

The fourth proportional to 423,034.29, 634,235.85 and 254,515.13 is: 381,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,034.29 : 634,235.85 = 254,515.13 : x
  2. Step 2: Convert to fraction form
    423,034.29/634,235.85 = 254,515.13/x
  3. Step 3: Cross multiply
    423,034.29x = 634,235.85 × 254,515.13
  4. Step 4: Simplify right side
    423,034.29x = 161,422,619,813.41
  5. Step 5: Solve for x
    x = 161,422,619,813.41/423,034.29
  6. Step 6: Final answer
    x = 381,582.83

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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.