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Finding the Fourth Proportional to 359,149.65, 495,648.87 and 198,004.45

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Solution

The fourth proportional to 359,149.65, 495,648.87 and 198,004.45 is: 273,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,149.65 : 495,648.87 = 198,004.45 : x
  2. Step 2: Convert to fraction form
    359,149.65/495,648.87 = 198,004.45/x
  3. Step 3: Cross multiply
    359,149.65x = 495,648.87 × 198,004.45
  4. Step 4: Simplify right side
    359,149.65x = 98,140,681,958.95
  5. Step 5: Solve for x
    x = 98,140,681,958.95/359,149.65
  6. Step 6: Final answer
    x = 273,258.47

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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.