Home / 407,053.16-561,761.88-225,782.36

Finding the Fourth Proportional to 407,053.16, 561,761.88 and 225,782.36

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Solution

The fourth proportional to 407,053.16, 561,761.88 and 225,782.36 is: 311,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,053.16 : 561,761.88 = 225,782.36 : x
  2. Step 2: Convert to fraction form
    407,053.16/561,761.88 = 225,782.36/x
  3. Step 3: Cross multiply
    407,053.16x = 561,761.88 × 225,782.36
  4. Step 4: Simplify right side
    407,053.16x = 126,835,923,024.44
  5. Step 5: Solve for x
    x = 126,835,923,024.44/407,053.16
  6. Step 6: Final answer
    x = 311,595.48

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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.