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Finding the Fourth Proportional to 359,000.40, 495,423.90 and 197,861.28

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Solution

The fourth proportional to 359,000.40, 495,423.90 and 197,861.28 is: 273,050.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,000.40 : 495,423.90 = 197,861.28 : x
  2. Step 2: Convert to fraction form
    359,000.40/495,423.90 = 197,861.28/x
  3. Step 3: Cross multiply
    359,000.40x = 495,423.90 × 197,861.28
  4. Step 4: Simplify right side
    359,000.40x = 98,025,206,996.59
  5. Step 5: Solve for x
    x = 98,025,206,996.59/359,000.40
  6. Step 6: Final answer
    x = 273,050.41

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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.