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Finding the Fourth Proportional to 225,261, 310,860.18 and 124,665.48

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Solution

The fourth proportional to 225,261, 310,860.18 and 124,665.48 is: 172,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,261 : 310,860.18 = 124,665.48 : x
  2. Step 2: Convert to fraction form
    225,261/310,860.18 = 124,665.48/x
  3. Step 3: Cross multiply
    225,261x = 310,860.18 × 124,665.48
  4. Step 4: Simplify right side
    225,261x = 38,753,533,552.59
  5. Step 5: Solve for x
    x = 38,753,533,552.59/225,261
  6. Step 6: Final answer
    x = 172,038.36

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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.