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Finding the Fourth Proportional to 371,495.52, 557,243.28 and 149,724

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Solution

The fourth proportional to 371,495.52, 557,243.28 and 149,724 is: 224,586

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,495.52 : 557,243.28 = 149,724 : x
  2. Step 2: Convert to fraction form
    371,495.52/557,243.28 = 149,724/x
  3. Step 3: Cross multiply
    371,495.52x = 557,243.28 × 149,724
  4. Step 4: Simplify right side
    371,495.52x = 83,432,692,854.72
  5. Step 5: Solve for x
    x = 83,432,692,854.72/371,495.52
  6. Step 6: Final answer
    x = 224,586

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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.