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Finding the Fourth Proportional to 358,902.70, 495,291.60 and 197,755.42

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Solution

The fourth proportional to 358,902.70, 495,291.60 and 197,755.42 is: 272,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,902.70 : 495,291.60 = 197,755.42 : x
  2. Step 2: Convert to fraction form
    358,902.70/495,291.60 = 197,755.42/x
  3. Step 3: Cross multiply
    358,902.70x = 495,291.60 × 197,755.42
  4. Step 4: Simplify right side
    358,902.70x = 97,946,598,380.47
  5. Step 5: Solve for x
    x = 97,946,598,380.47/358,902.70
  6. Step 6: Final answer
    x = 272,905.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.