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Finding the Fourth Proportional to 359,268.80, 495,794.40 and 198,129.56

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Solution

The fourth proportional to 359,268.80, 495,794.40 and 198,129.56 is: 273,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,268.80 : 495,794.40 = 198,129.56 : x
  2. Step 2: Convert to fraction form
    359,268.80/495,794.40 = 198,129.56/x
  3. Step 3: Cross multiply
    359,268.80x = 495,794.40 × 198,129.56
  4. Step 4: Simplify right side
    359,268.80x = 98,231,526,322.46
  5. Step 5: Solve for x
    x = 98,231,526,322.46/359,268.80
  6. Step 6: Final answer
    x = 273,420.70

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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.