Home / 216,246.03-324,400.05-66,498.90

Finding the Fourth Proportional to 216,246.03, 324,400.05 and 66,498.90

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Solution

The fourth proportional to 216,246.03, 324,400.05 and 66,498.90 is: 99,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,246.03 : 324,400.05 = 66,498.90 : x
  2. Step 2: Convert to fraction form
    216,246.03/324,400.05 = 66,498.90/x
  3. Step 3: Cross multiply
    216,246.03x = 324,400.05 × 66,498.90
  4. Step 4: Simplify right side
    216,246.03x = 21,572,246,484.95
  5. Step 5: Solve for x
    x = 21,572,246,484.95/216,246.03
  6. Step 6: Final answer
    x = 99,757.88

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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.