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Finding the Fourth Proportional to 225,030.40, 337,545.60 and 221,531.20

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Solution

The fourth proportional to 225,030.40, 337,545.60 and 221,531.20 is: 332,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,030.40 : 337,545.60 = 221,531.20 : x
  2. Step 2: Convert to fraction form
    225,030.40/337,545.60 = 221,531.20/x
  3. Step 3: Cross multiply
    225,030.40x = 337,545.60 × 221,531.20
  4. Step 4: Simplify right side
    225,030.40x = 74,776,881,822.72
  5. Step 5: Solve for x
    x = 74,776,881,822.72/225,030.40
  6. Step 6: Final answer
    x = 332,296.80

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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.