Home / 318,772.08-439,905.47-175,531.78

Finding the Fourth Proportional to 318,772.08, 439,905.47 and 175,531.78

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Solution

The fourth proportional to 318,772.08, 439,905.47 and 175,531.78 is: 242,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,772.08 : 439,905.47 = 175,531.78 : x
  2. Step 2: Convert to fraction form
    318,772.08/439,905.47 = 175,531.78/x
  3. Step 3: Cross multiply
    318,772.08x = 439,905.47 × 175,531.78
  4. Step 4: Simplify right side
    318,772.08x = 77,217,390,511.30
  5. Step 5: Solve for x
    x = 77,217,390,511.30/318,772.08
  6. Step 6: Final answer
    x = 242,233.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.