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Finding the Fourth Proportional to 359,272.99, 495,789.82 and 198,142.93

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Solution

The fourth proportional to 359,272.99, 495,789.82 and 198,142.93 is: 273,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,272.99 : 495,789.82 = 198,142.93 : x
  2. Step 2: Convert to fraction form
    359,272.99/495,789.82 = 198,142.93/x
  3. Step 3: Cross multiply
    359,272.99x = 495,789.82 × 198,142.93
  4. Step 4: Simplify right side
    359,272.99x = 98,237,247,598.97
  5. Step 5: Solve for x
    x = 98,237,247,598.97/359,272.99
  6. Step 6: Final answer
    x = 273,433.43

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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.