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Finding the Fourth Proportional to 359,137.32, 495,607.71 and 197,991.87

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Solution

The fourth proportional to 359,137.32, 495,607.71 and 197,991.87 is: 273,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,137.32 : 495,607.71 = 197,991.87 : x
  2. Step 2: Convert to fraction form
    359,137.32/495,607.71 = 197,991.87/x
  3. Step 3: Cross multiply
    359,137.32x = 495,607.71 × 197,991.87
  4. Step 4: Simplify right side
    359,137.32x = 98,126,297,289.32
  5. Step 5: Solve for x
    x = 98,126,297,289.32/359,137.32
  6. Step 6: Final answer
    x = 273,227.79

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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.