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Finding the Fourth Proportional to 330,534.96, 495,713.88 and 143,502

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Solution

The fourth proportional to 330,534.96, 495,713.88 and 143,502 is: 215,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,534.96 : 495,713.88 = 143,502 : x
  2. Step 2: Convert to fraction form
    330,534.96/495,713.88 = 143,502/x
  3. Step 3: Cross multiply
    330,534.96x = 495,713.88 × 143,502
  4. Step 4: Simplify right side
    330,534.96x = 71,135,933,207.76
  5. Step 5: Solve for x
    x = 71,135,933,207.76/330,534.96
  6. Step 6: Final answer
    x = 215,214.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.