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Finding the Fourth Proportional to 359,217.09, 495,741.87 and 198,071.64

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Solution

The fourth proportional to 359,217.09, 495,741.87 and 198,071.64 is: 273,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,217.09 : 495,741.87 = 198,071.64 : x
  2. Step 2: Convert to fraction form
    359,217.09/495,741.87 = 198,071.64/x
  3. Step 3: Cross multiply
    359,217.09x = 495,741.87 × 198,071.64
  4. Step 4: Simplify right side
    359,217.09x = 98,192,405,207.57
  5. Step 5: Solve for x
    x = 98,192,405,207.57/359,217.09
  6. Step 6: Final answer
    x = 273,351.15

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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.