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Finding the Fourth Proportional to 359,007.30, 495,409.86 and 197,861.85

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Solution

The fourth proportional to 359,007.30, 495,409.86 and 197,861.85 is: 273,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,007.30 : 495,409.86 = 197,861.85 : x
  2. Step 2: Convert to fraction form
    359,007.30/495,409.86 = 197,861.85/x
  3. Step 3: Cross multiply
    359,007.30x = 495,409.86 × 197,861.85
  4. Step 4: Simplify right side
    359,007.30x = 98,022,711,407.84
  5. Step 5: Solve for x
    x = 98,022,711,407.84/359,007.30
  6. Step 6: Final answer
    x = 273,038.21

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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.