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Finding the Fourth Proportional to 331,374.40, 497,061.60 and 82,056.40

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Solution

The fourth proportional to 331,374.40, 497,061.60 and 82,056.40 is: 123,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,374.40 : 497,061.60 = 82,056.40 : x
  2. Step 2: Convert to fraction form
    331,374.40/497,061.60 = 82,056.40/x
  3. Step 3: Cross multiply
    331,374.40x = 497,061.60 × 82,056.40
  4. Step 4: Simplify right side
    331,374.40x = 40,787,085,474.24
  5. Step 5: Solve for x
    x = 40,787,085,474.24/331,374.40
  6. Step 6: Final answer
    x = 123,084.60

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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.