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Finding the Fourth Proportional to 359,358.25, 495,905.69 and 198,209.84

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Solution

The fourth proportional to 359,358.25, 495,905.69 and 198,209.84 is: 273,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,358.25 : 495,905.69 = 198,209.84 : x
  2. Step 2: Convert to fraction form
    359,358.25/495,905.69 = 198,209.84/x
  3. Step 3: Cross multiply
    359,358.25x = 495,905.69 × 198,209.84
  4. Step 4: Simplify right side
    359,358.25x = 98,293,386,880.72
  5. Step 5: Solve for x
    x = 98,293,386,880.72/359,358.25
  6. Step 6: Final answer
    x = 273,524.78

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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.