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Finding the Fourth Proportional to 330,329.59, 495,497.31 and 130,650

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Solution

The fourth proportional to 330,329.59, 495,497.31 and 130,650 is: 195,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,329.59 : 495,497.31 = 130,650 : x
  2. Step 2: Convert to fraction form
    330,329.59/495,497.31 = 130,650/x
  3. Step 3: Cross multiply
    330,329.59x = 495,497.31 × 130,650
  4. Step 4: Simplify right side
    330,329.59x = 64,736,723,551.50
  5. Step 5: Solve for x
    x = 64,736,723,551.50/330,329.59
  6. Step 6: Final answer
    x = 195,976.16

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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.