Home / 225,377.55-311,011.38-123,401.16

Finding the Fourth Proportional to 225,377.55, 311,011.38 and 123,401.16

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Solution

The fourth proportional to 225,377.55, 311,011.38 and 123,401.16 is: 170,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,377.55 : 311,011.38 = 123,401.16 : x
  2. Step 2: Convert to fraction form
    225,377.55/311,011.38 = 123,401.16/x
  3. Step 3: Cross multiply
    225,377.55x = 311,011.38 × 123,401.16
  4. Step 4: Simplify right side
    225,377.55x = 38,379,165,065.20
  5. Step 5: Solve for x
    x = 38,379,165,065.20/225,377.55
  6. Step 6: Final answer
    x = 170,288.32

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1.5x scale

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.