Home / 325,039.10-487,610.58-100,346.72

Finding the Fourth Proportional to 325,039.10, 487,610.58 and 100,346.72

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Solution

The fourth proportional to 325,039.10, 487,610.58 and 100,346.72 is: 150,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,039.10 : 487,610.58 = 100,346.72 : x
  2. Step 2: Convert to fraction form
    325,039.10/487,610.58 = 100,346.72/x
  3. Step 3: Cross multiply
    325,039.10x = 487,610.58 × 100,346.72
  4. Step 4: Simplify right side
    325,039.10x = 48,930,122,340.30
  5. Step 5: Solve for x
    x = 48,930,122,340.30/325,039.10
  6. Step 6: Final answer
    x = 150,536.11

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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.