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Finding the Fourth Proportional to 225,351.40, 310,988.60 and 123,375.14

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Solution

The fourth proportional to 225,351.40, 310,988.60 and 123,375.14 is: 170,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,351.40 : 310,988.60 = 123,375.14 : x
  2. Step 2: Convert to fraction form
    225,351.40/310,988.60 = 123,375.14/x
  3. Step 3: Cross multiply
    225,351.40x = 310,988.60 × 123,375.14
  4. Step 4: Simplify right side
    225,351.40x = 38,368,262,063.40
  5. Step 5: Solve for x
    x = 38,368,262,063.40/225,351.40
  6. Step 6: Final answer
    x = 170,259.70

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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.