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Finding the Fourth Proportional to 432,512.91, 648,787.30 and 148,398.80

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Solution

The fourth proportional to 432,512.91, 648,787.30 and 148,398.80 is: 222,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,512.91 : 648,787.30 = 148,398.80 : x
  2. Step 2: Convert to fraction form
    432,512.91/648,787.30 = 148,398.80/x
  3. Step 3: Cross multiply
    432,512.91x = 648,787.30 × 148,398.80
  4. Step 4: Simplify right side
    432,512.91x = 96,279,257,116.73
  5. Step 5: Solve for x
    x = 96,279,257,116.73/432,512.91
  6. Step 6: Final answer
    x = 222,604.35

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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.