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Finding the Fourth Proportional to 406,532.32, 561,015.62 and 225,242.78

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Solution

The fourth proportional to 406,532.32, 561,015.62 and 225,242.78 is: 310,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,532.32 : 561,015.62 = 225,242.78 : x
  2. Step 2: Convert to fraction form
    406,532.32/561,015.62 = 225,242.78/x
  3. Step 3: Cross multiply
    406,532.32x = 561,015.62 × 225,242.78
  4. Step 4: Simplify right side
    406,532.32x = 126,364,714,785.59
  5. Step 5: Solve for x
    x = 126,364,714,785.59/406,532.32
  6. Step 6: Final answer
    x = 310,835.59

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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.