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Finding the Fourth Proportional to 359,152.70, 495,630.57 and 206,200.76

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Solution

The fourth proportional to 359,152.70, 495,630.57 and 206,200.76 is: 284,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,152.70 : 495,630.57 = 206,200.76 : x
  2. Step 2: Convert to fraction form
    359,152.70/495,630.57 = 206,200.76/x
  3. Step 3: Cross multiply
    359,152.70x = 495,630.57 × 206,200.76
  4. Step 4: Simplify right side
    359,152.70x = 102,199,400,213.23
  5. Step 5: Solve for x
    x = 102,199,400,213.23/359,152.70
  6. Step 6: Final answer
    x = 284,556.96

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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.