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Finding the Fourth Proportional to 359,276.64, 495,799.20 and 198,138.24

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Solution

The fourth proportional to 359,276.64, 495,799.20 and 198,138.24 is: 273,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,276.64 : 495,799.20 = 198,138.24 : x
  2. Step 2: Convert to fraction form
    359,276.64/495,799.20 = 198,138.24/x
  3. Step 3: Cross multiply
    359,276.64x = 495,799.20 × 198,138.24
  4. Step 4: Simplify right side
    359,276.64x = 98,236,780,881.41
  5. Step 5: Solve for x
    x = 98,236,780,881.41/359,276.64
  6. Step 6: Final answer
    x = 273,429.36

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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.