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Finding the Fourth Proportional to 321,862.40, 482,793.60 and 238,918.40

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Solution

The fourth proportional to 321,862.40, 482,793.60 and 238,918.40 is: 358,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,862.40 : 482,793.60 = 238,918.40 : x
  2. Step 2: Convert to fraction form
    321,862.40/482,793.60 = 238,918.40/x
  3. Step 3: Cross multiply
    321,862.40x = 482,793.60 × 238,918.40
  4. Step 4: Simplify right side
    321,862.40x = 115,348,274,442.24
  5. Step 5: Solve for x
    x = 115,348,274,442.24/321,862.40
  6. Step 6: Final answer
    x = 358,377.60

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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.