Home / 420,150.24-579,814.56-229,170.24

Finding the Fourth Proportional to 420,150.24, 579,814.56 and 229,170.24

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Solution

The fourth proportional to 420,150.24, 579,814.56 and 229,170.24 is: 316,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,150.24 : 579,814.56 = 229,170.24 : x
  2. Step 2: Convert to fraction form
    420,150.24/579,814.56 = 229,170.24/x
  3. Step 3: Cross multiply
    420,150.24x = 579,814.56 × 229,170.24
  4. Step 4: Simplify right side
    420,150.24x = 132,876,241,870.69
  5. Step 5: Solve for x
    x = 132,876,241,870.69/420,150.24
  6. Step 6: Final answer
    x = 316,258.87

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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.