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Finding the Fourth Proportional to 225,514.66, 311,210.35 and 123,543.81

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Solution

The fourth proportional to 225,514.66, 311,210.35 and 123,543.81 is: 170,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,514.66 : 311,210.35 = 123,543.81 : x
  2. Step 2: Convert to fraction form
    225,514.66/311,210.35 = 123,543.81/x
  3. Step 3: Cross multiply
    225,514.66x = 311,210.35 × 123,543.81
  4. Step 4: Simplify right side
    225,514.66x = 38,448,112,350.43
  5. Step 5: Solve for x
    x = 38,448,112,350.43/225,514.66
  6. Step 6: Final answer
    x = 170,490.52

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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.