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Finding the Fourth Proportional to 363,965.69, 502,265.76 and 198,395.10

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Solution

The fourth proportional to 363,965.69, 502,265.76 and 198,395.10 is: 273,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,965.69 : 502,265.76 = 198,395.10 : x
  2. Step 2: Convert to fraction form
    363,965.69/502,265.76 = 198,395.10/x
  3. Step 3: Cross multiply
    363,965.69x = 502,265.76 × 198,395.10
  4. Step 4: Simplify right side
    363,965.69x = 99,647,065,681.78
  5. Step 5: Solve for x
    x = 99,647,065,681.78/363,965.69
  6. Step 6: Final answer
    x = 273,781.48

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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.