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Finding the Fourth Proportional to 330,191.80, 494,850.30 and 292,575.40

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Solution

The fourth proportional to 330,191.80, 494,850.30 and 292,575.40 is: 438,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,191.80 : 494,850.30 = 292,575.40 : x
  2. Step 2: Convert to fraction form
    330,191.80/494,850.30 = 292,575.40/x
  3. Step 3: Cross multiply
    330,191.80x = 494,850.30 × 292,575.40
  4. Step 4: Simplify right side
    330,191.80x = 144,781,024,462.62
  5. Step 5: Solve for x
    x = 144,781,024,462.62/330,191.80
  6. Step 6: Final answer
    x = 438,475.53

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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.