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Finding the Fourth Proportional to 359,003.97, 495,604.85 and 278,250.21

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Solution

The fourth proportional to 359,003.97, 495,604.85 and 278,250.21 is: 384,124.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,003.97 : 495,604.85 = 278,250.21 : x
  2. Step 2: Convert to fraction form
    359,003.97/495,604.85 = 278,250.21/x
  3. Step 3: Cross multiply
    359,003.97x = 495,604.85 × 278,250.21
  4. Step 4: Simplify right side
    359,003.97x = 137,902,152,198.27
  5. Step 5: Solve for x
    x = 137,902,152,198.27/359,003.97
  6. Step 6: Final answer
    x = 384,124.31

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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.