Home / 305,510.90-458,082.26-137,000.75

Finding the Fourth Proportional to 305,510.90, 458,082.26 and 137,000.75

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Solution

The fourth proportional to 305,510.90, 458,082.26 and 137,000.75 is: 205,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,510.90 : 458,082.26 = 137,000.75 : x
  2. Step 2: Convert to fraction form
    305,510.90/458,082.26 = 137,000.75/x
  3. Step 3: Cross multiply
    305,510.90x = 458,082.26 × 137,000.75
  4. Step 4: Simplify right side
    305,510.90x = 62,757,612,496.69
  5. Step 5: Solve for x
    x = 62,757,612,496.69/305,510.90
  6. Step 6: Final answer
    x = 205,418.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.