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Finding the Fourth Proportional to 330,495.46, 495,654.63 and 143,462.50

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Solution

The fourth proportional to 330,495.46, 495,654.63 and 143,462.50 is: 215,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,495.46 : 495,654.63 = 143,462.50 : x
  2. Step 2: Convert to fraction form
    330,495.46/495,654.63 = 143,462.50/x
  3. Step 3: Cross multiply
    330,495.46x = 495,654.63 × 143,462.50
  4. Step 4: Simplify right side
    330,495.46x = 71,107,852,356.38
  5. Step 5: Solve for x
    x = 71,107,852,356.38/330,495.46
  6. Step 6: Final answer
    x = 215,155.31

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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.