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Finding the Fourth Proportional to 225,240, 310,833.44 and 124,640.16

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Solution

The fourth proportional to 225,240, 310,833.44 and 124,640.16 is: 172,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,240 : 310,833.44 = 124,640.16 : x
  2. Step 2: Convert to fraction form
    225,240/310,833.44 = 124,640.16/x
  3. Step 3: Cross multiply
    225,240x = 310,833.44 × 124,640.16
  4. Step 4: Simplify right side
    225,240x = 38,742,329,694.95
  5. Step 5: Solve for x
    x = 38,742,329,694.95/225,240
  6. Step 6: Final answer
    x = 172,004.66

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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.