Home / 407,002.31-561,663.19-225,742.00

Finding the Fourth Proportional to 407,002.31, 561,663.19 and 225,742.00

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Solution

The fourth proportional to 407,002.31, 561,663.19 and 225,742.00 is: 311,523.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,002.31 : 561,663.19 = 225,742.00 : x
  2. Step 2: Convert to fraction form
    407,002.31/561,663.19 = 225,742.00/x
  3. Step 3: Cross multiply
    407,002.31x = 561,663.19 × 225,742.00
  4. Step 4: Simplify right side
    407,002.31x = 126,790,970,715.00
  5. Step 5: Solve for x
    x = 126,790,970,715.00/407,002.31
  6. Step 6: Final answer
    x = 311,523.96

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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.