Home / 210,517.24-315,778.62-70,275.76

Finding the Fourth Proportional to 210,517.24, 315,778.62 and 70,275.76

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Solution

The fourth proportional to 210,517.24, 315,778.62 and 70,275.76 is: 105,414.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,517.24 : 315,778.62 = 70,275.76 : x
  2. Step 2: Convert to fraction form
    210,517.24/315,778.62 = 70,275.76/x
  3. Step 3: Cross multiply
    210,517.24x = 315,778.62 × 70,275.76
  4. Step 4: Simplify right side
    210,517.24x = 22,191,582,512.25
  5. Step 5: Solve for x
    x = 22,191,582,512.25/210,517.24
  6. Step 6: Final answer
    x = 105,414.56

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1.5x scale

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.