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Finding the Fourth Proportional to 330,587.60, 495,881.40 and 197,877.20

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Solution

The fourth proportional to 330,587.60, 495,881.40 and 197,877.20 is: 296,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,587.60 : 495,881.40 = 197,877.20 : x
  2. Step 2: Convert to fraction form
    330,587.60/495,881.40 = 197,877.20/x
  3. Step 3: Cross multiply
    330,587.60x = 495,881.40 × 197,877.20
  4. Step 4: Simplify right side
    330,587.60x = 98,123,622,964.08
  5. Step 5: Solve for x
    x = 98,123,622,964.08/330,587.60
  6. Step 6: Final answer
    x = 296,815.80

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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.