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Finding the Fourth Proportional to 407,441.07, 611,761.39 and 227,878.29

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Solution

The fourth proportional to 407,441.07, 611,761.39 and 227,878.29 is: 342,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,441.07 : 611,761.39 = 227,878.29 : x
  2. Step 2: Convert to fraction form
    407,441.07/611,761.39 = 227,878.29/x
  3. Step 3: Cross multiply
    407,441.07x = 611,761.39 × 227,878.29
  4. Step 4: Simplify right side
    407,441.07x = 139,407,138,871.53
  5. Step 5: Solve for x
    x = 139,407,138,871.53/407,441.07
  6. Step 6: Final answer
    x = 342,152.89

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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.