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Finding the Fourth Proportional to 330,124.53, 495,219.61 and 119,778.87

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Solution

The fourth proportional to 330,124.53, 495,219.61 and 119,778.87 is: 179,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,124.53 : 495,219.61 = 119,778.87 : x
  2. Step 2: Convert to fraction form
    330,124.53/495,219.61 = 119,778.87/x
  3. Step 3: Cross multiply
    330,124.53x = 495,219.61 × 119,778.87
  4. Step 4: Simplify right side
    330,124.53x = 59,316,845,287.64
  5. Step 5: Solve for x
    x = 59,316,845,287.64/330,124.53
  6. Step 6: Final answer
    x = 179,680.21

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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.