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Finding the Fourth Proportional to 359,418.39, 495,995.97 and 198,283.47

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Solution

The fourth proportional to 359,418.39, 495,995.97 and 198,283.47 is: 273,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,418.39 : 495,995.97 = 198,283.47 : x
  2. Step 2: Convert to fraction form
    359,418.39/495,995.97 = 198,283.47/x
  3. Step 3: Cross multiply
    359,418.39x = 495,995.97 × 198,283.47
  4. Step 4: Simplify right side
    359,418.39x = 98,347,802,037.62
  5. Step 5: Solve for x
    x = 98,347,802,037.62/359,418.39
  6. Step 6: Final answer
    x = 273,630.41

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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.