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Finding the Fourth Proportional to 331,437.60, 497,156.40 and 109,792.80

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Solution

The fourth proportional to 331,437.60, 497,156.40 and 109,792.80 is: 164,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,437.60 : 497,156.40 = 109,792.80 : x
  2. Step 2: Convert to fraction form
    331,437.60/497,156.40 = 109,792.80/x
  3. Step 3: Cross multiply
    331,437.60x = 497,156.40 × 109,792.80
  4. Step 4: Simplify right side
    331,437.60x = 54,584,193,193.92
  5. Step 5: Solve for x
    x = 54,584,193,193.92/331,437.60
  6. Step 6: Final answer
    x = 164,689.20

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1.5x scale

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.