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Finding the Fourth Proportional to 330,327.60, 495,272.70 and 119,938.20

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Solution

The fourth proportional to 330,327.60, 495,272.70 and 119,938.20 is: 179,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,327.60 : 495,272.70 = 119,938.20 : x
  2. Step 2: Convert to fraction form
    330,327.60/495,272.70 = 119,938.20/x
  3. Step 3: Cross multiply
    330,327.60x = 495,272.70 × 119,938.20
  4. Step 4: Simplify right side
    330,327.60x = 59,402,116,147.14
  5. Step 5: Solve for x
    x = 59,402,116,147.14/330,327.60
  6. Step 6: Final answer
    x = 179,827.89

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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.