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Finding the Fourth Proportional to 328,151.55, 492,242.97 and 159,470.91

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Solution

The fourth proportional to 328,151.55, 492,242.97 and 159,470.91 is: 239,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,151.55 : 492,242.97 = 159,470.91 : x
  2. Step 2: Convert to fraction form
    328,151.55/492,242.97 = 159,470.91/x
  3. Step 3: Cross multiply
    328,151.55x = 492,242.97 × 159,470.91
  4. Step 4: Simplify right side
    328,151.55x = 78,498,434,367.00
  5. Step 5: Solve for x
    x = 78,498,434,367.00/328,151.55
  6. Step 6: Final answer
    x = 239,213.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.