Home / 250,257.72-345,355.80-137,082.36

Finding the Fourth Proportional to 250,257.72, 345,355.80 and 137,082.36

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Solution

The fourth proportional to 250,257.72, 345,355.80 and 137,082.36 is: 189,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,257.72 : 345,355.80 = 137,082.36 : x
  2. Step 2: Convert to fraction form
    250,257.72/345,355.80 = 137,082.36/x
  3. Step 3: Cross multiply
    250,257.72x = 345,355.80 × 137,082.36
  4. Step 4: Simplify right side
    250,257.72x = 47,342,188,103.69
  5. Step 5: Solve for x
    x = 47,342,188,103.69/250,257.72
  6. Step 6: Final answer
    x = 189,173.74

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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.