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Finding the Fourth Proportional to 331,872.60, 497,808.90 and 272,823.60

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Solution

The fourth proportional to 331,872.60, 497,808.90 and 272,823.60 is: 409,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,872.60 : 497,808.90 = 272,823.60 : x
  2. Step 2: Convert to fraction form
    331,872.60/497,808.90 = 272,823.60/x
  3. Step 3: Cross multiply
    331,872.60x = 497,808.90 × 272,823.60
  4. Step 4: Simplify right side
    331,872.60x = 135,814,016,210.04
  5. Step 5: Solve for x
    x = 135,814,016,210.04/331,872.60
  6. Step 6: Final answer
    x = 409,235.40

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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.