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Finding the Fourth Proportional to 330,177.60, 495,266.40 and 310,494.60

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Solution

The fourth proportional to 330,177.60, 495,266.40 and 310,494.60 is: 465,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,177.60 : 495,266.40 = 310,494.60 : x
  2. Step 2: Convert to fraction form
    330,177.60/495,266.40 = 310,494.60/x
  3. Step 3: Cross multiply
    330,177.60x = 495,266.40 × 310,494.60
  4. Step 4: Simplify right side
    330,177.60x = 153,777,542,761.44
  5. Step 5: Solve for x
    x = 153,777,542,761.44/330,177.60
  6. Step 6: Final answer
    x = 465,741.90

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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.