Home / 225,685.28-311,438.04-130,189.52

Finding the Fourth Proportional to 225,685.28, 311,438.04 and 130,189.52

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Solution

The fourth proportional to 225,685.28, 311,438.04 and 130,189.52 is: 179,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,685.28 : 311,438.04 = 130,189.52 : x
  2. Step 2: Convert to fraction form
    225,685.28/311,438.04 = 130,189.52/x
  3. Step 3: Cross multiply
    225,685.28x = 311,438.04 × 130,189.52
  4. Step 4: Simplify right side
    225,685.28x = 40,545,968,937.34
  5. Step 5: Solve for x
    x = 40,545,968,937.34/225,685.28
  6. Step 6: Final answer
    x = 179,657.13

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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.