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Finding the Fourth Proportional to 625,454.34, 938,181.78 and 152,136.78

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Solution

The fourth proportional to 625,454.34, 938,181.78 and 152,136.78 is: 228,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,454.34 : 938,181.78 = 152,136.78 : x
  2. Step 2: Convert to fraction form
    625,454.34/938,181.78 = 152,136.78/x
  3. Step 3: Cross multiply
    625,454.34x = 938,181.78 × 152,136.78
  4. Step 4: Simplify right side
    625,454.34x = 142,731,955,063.87
  5. Step 5: Solve for x
    x = 142,731,955,063.87/625,454.34
  6. Step 6: Final answer
    x = 228,205.24

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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.