Home / 225,475.85-311,145.53-123,501.75

Finding the Fourth Proportional to 225,475.85, 311,145.53 and 123,501.75

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Solution

The fourth proportional to 225,475.85, 311,145.53 and 123,501.75 is: 170,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,475.85 : 311,145.53 = 123,501.75 : x
  2. Step 2: Convert to fraction form
    225,475.85/311,145.53 = 123,501.75/x
  3. Step 3: Cross multiply
    225,475.85x = 311,145.53 × 123,501.75
  4. Step 4: Simplify right side
    225,475.85x = 38,427,016,842.17
  5. Step 5: Solve for x
    x = 38,427,016,842.17/225,475.85
  6. Step 6: Final answer
    x = 170,426.31

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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.