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Finding the Fourth Proportional to 330,330.59, 495,498.81 and 130,651

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Solution

The fourth proportional to 330,330.59, 495,498.81 and 130,651 is: 195,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,330.59 : 495,498.81 = 130,651 : x
  2. Step 2: Convert to fraction form
    330,330.59/495,498.81 = 130,651/x
  3. Step 3: Cross multiply
    330,330.59x = 495,498.81 × 130,651
  4. Step 4: Simplify right side
    330,330.59x = 64,737,415,025.31
  5. Step 5: Solve for x
    x = 64,737,415,025.31/330,330.59
  6. Step 6: Final answer
    x = 195,977.66

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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.