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Finding the Fourth Proportional to 225,761.58, 311,564.98 and 125,159.58

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Solution

The fourth proportional to 225,761.58, 311,564.98 and 125,159.58 is: 172,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,761.58 : 311,564.98 = 125,159.58 : x
  2. Step 2: Convert to fraction form
    225,761.58/311,564.98 = 125,159.58/x
  3. Step 3: Cross multiply
    225,761.58x = 311,564.98 × 125,159.58
  4. Step 4: Simplify right side
    225,761.58x = 38,995,342,039.51
  5. Step 5: Solve for x
    x = 38,995,342,039.51/225,761.58
  6. Step 6: Final answer
    x = 172,727.98

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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.