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Finding the Fourth Proportional to 225,574, 311,302.32 and 124,972

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Solution

The fourth proportional to 225,574, 311,302.32 and 124,972 is: 172,467.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,574 : 311,302.32 = 124,972 : x
  2. Step 2: Convert to fraction form
    225,574/311,302.32 = 124,972/x
  3. Step 3: Cross multiply
    225,574x = 311,302.32 × 124,972
  4. Step 4: Simplify right side
    225,574x = 38,904,073,535.04
  5. Step 5: Solve for x
    x = 38,904,073,535.04/225,574
  6. Step 6: Final answer
    x = 172,467.01

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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.