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Finding the Fourth Proportional to 332,354.68, 458,187 and 280,885.18

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Solution

The fourth proportional to 332,354.68, 458,187 and 280,885.18 is: 387,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,354.68 : 458,187 = 280,885.18 : x
  2. Step 2: Convert to fraction form
    332,354.68/458,187 = 280,885.18/x
  3. Step 3: Cross multiply
    332,354.68x = 458,187 × 280,885.18
  4. Step 4: Simplify right side
    332,354.68x = 128,697,937,968.66
  5. Step 5: Solve for x
    x = 128,697,937,968.66/332,354.68
  6. Step 6: Final answer
    x = 387,230.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.