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Finding the Fourth Proportional to 359,376.55, 495,943.10 and 198,238.39

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Solution

The fourth proportional to 359,376.55, 495,943.10 and 198,238.39 is: 273,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,376.55 : 495,943.10 = 198,238.39 : x
  2. Step 2: Convert to fraction form
    359,376.55/495,943.10 = 198,238.39/x
  3. Step 3: Cross multiply
    359,376.55x = 495,943.10 × 198,238.39
  4. Step 4: Simplify right side
    359,376.55x = 98,314,961,675.61
  5. Step 5: Solve for x
    x = 98,314,961,675.61/359,376.55
  6. Step 6: Final answer
    x = 273,570.89

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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.