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Finding the Fourth Proportional to 225,038.40, 337,687.20 and 84,897.60

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Solution

The fourth proportional to 225,038.40, 337,687.20 and 84,897.60 is: 127,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,038.40 : 337,687.20 = 84,897.60 : x
  2. Step 2: Convert to fraction form
    225,038.40/337,687.20 = 84,897.60/x
  3. Step 3: Cross multiply
    225,038.40x = 337,687.20 × 84,897.60
  4. Step 4: Simplify right side
    225,038.40x = 28,668,832,830.72
  5. Step 5: Solve for x
    x = 28,668,832,830.72/225,038.40
  6. Step 6: Final answer
    x = 127,395.29

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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.