Home / 145,480.91-218,221.38-40,299.93

Finding the Fourth Proportional to 145,480.91, 218,221.38 and 40,299.93

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Solution

The fourth proportional to 145,480.91, 218,221.38 and 40,299.93 is: 60,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.91 : 218,221.38 = 40,299.93 : x
  2. Step 2: Convert to fraction form
    145,480.91/218,221.38 = 40,299.93/x
  3. Step 3: Cross multiply
    145,480.91x = 218,221.38 × 40,299.93
  4. Step 4: Simplify right side
    145,480.91x = 8,794,306,338.50
  5. Step 5: Solve for x
    x = 8,794,306,338.50/145,480.91
  6. Step 6: Final answer
    x = 60,449.90

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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.