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Finding the Fourth Proportional to 560,479.87, 840,853.21 and 181,400.61

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Solution

The fourth proportional to 560,479.87, 840,853.21 and 181,400.61 is: 272,144.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,479.87 : 840,853.21 = 181,400.61 : x
  2. Step 2: Convert to fraction form
    560,479.87/840,853.21 = 181,400.61/x
  3. Step 3: Cross multiply
    560,479.87x = 840,853.21 × 181,400.61
  4. Step 4: Simplify right side
    560,479.87x = 152,531,284,760.96
  5. Step 5: Solve for x
    x = 152,531,284,760.96/560,479.87
  6. Step 6: Final answer
    x = 272,144.09

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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.