Home / 225,875.28-311,707.88-130,381.98

Finding the Fourth Proportional to 225,875.28, 311,707.88 and 130,381.98

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Solution

The fourth proportional to 225,875.28, 311,707.88 and 130,381.98 is: 179,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,875.28 : 311,707.88 = 130,381.98 : x
  2. Step 2: Convert to fraction form
    225,875.28/311,707.88 = 130,381.98/x
  3. Step 3: Cross multiply
    225,875.28x = 311,707.88 × 130,381.98
  4. Step 4: Simplify right side
    225,875.28x = 40,641,090,120.80
  5. Step 5: Solve for x
    x = 40,641,090,120.80/225,875.28
  6. Step 6: Final answer
    x = 179,927.12

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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.