Home / 325,136.22-487,750.90-100,516.20

Finding the Fourth Proportional to 325,136.22, 487,750.90 and 100,516.20

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Solution

The fourth proportional to 325,136.22, 487,750.90 and 100,516.20 is: 150,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,136.22 : 487,750.90 = 100,516.20 : x
  2. Step 2: Convert to fraction form
    325,136.22/487,750.90 = 100,516.20/x
  3. Step 3: Cross multiply
    325,136.22x = 487,750.90 × 100,516.20
  4. Step 4: Simplify right side
    325,136.22x = 49,026,867,014.58
  5. Step 5: Solve for x
    x = 49,026,867,014.58/325,136.22
  6. Step 6: Final answer
    x = 150,788.70

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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.