Home / 225,845.76-311,681.28-130,369.92

Finding the Fourth Proportional to 225,845.76, 311,681.28 and 130,369.92

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Solution

The fourth proportional to 225,845.76, 311,681.28 and 130,369.92 is: 179,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,845.76 : 311,681.28 = 130,369.92 : x
  2. Step 2: Convert to fraction form
    225,845.76/311,681.28 = 130,369.92/x
  3. Step 3: Cross multiply
    225,845.76x = 311,681.28 × 130,369.92
  4. Step 4: Simplify right side
    225,845.76x = 40,633,863,539.10
  5. Step 5: Solve for x
    x = 40,633,863,539.10/225,845.76
  6. Step 6: Final answer
    x = 179,918.65

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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.