Home / 225,684.78-311,437.35-130,189.02

Finding the Fourth Proportional to 225,684.78, 311,437.35 and 130,189.02

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Solution

The fourth proportional to 225,684.78, 311,437.35 and 130,189.02 is: 179,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,684.78 : 311,437.35 = 130,189.02 : x
  2. Step 2: Convert to fraction form
    225,684.78/311,437.35 = 130,189.02/x
  3. Step 3: Cross multiply
    225,684.78x = 311,437.35 × 130,189.02
  4. Step 4: Simplify right side
    225,684.78x = 40,545,723,387.90
  5. Step 5: Solve for x
    x = 40,545,723,387.90/225,684.78
  6. Step 6: Final answer
    x = 179,656.44

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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.