Home / 407,132.18-561,909.77-225,902.51

Finding the Fourth Proportional to 407,132.18, 561,909.77 and 225,902.51

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Solution

The fourth proportional to 407,132.18, 561,909.77 and 225,902.51 is: 311,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,132.18 : 561,909.77 = 225,902.51 : x
  2. Step 2: Convert to fraction form
    407,132.18/561,909.77 = 225,902.51/x
  3. Step 3: Cross multiply
    407,132.18x = 561,909.77 × 225,902.51
  4. Step 4: Simplify right side
    407,132.18x = 126,936,823,497.46
  5. Step 5: Solve for x
    x = 126,936,823,497.46/407,132.18
  6. Step 6: Final answer
    x = 311,782.83

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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.