Home / 216,569.01-324,635.37-90,279.12

Finding the Fourth Proportional to 216,569.01, 324,635.37 and 90,279.12

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Solution

The fourth proportional to 216,569.01, 324,635.37 and 90,279.12 is: 135,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,569.01 : 324,635.37 = 90,279.12 : x
  2. Step 2: Convert to fraction form
    216,569.01/324,635.37 = 90,279.12/x
  3. Step 3: Cross multiply
    216,569.01x = 324,635.37 × 90,279.12
  4. Step 4: Simplify right side
    216,569.01x = 29,307,795,524.47
  5. Step 5: Solve for x
    x = 29,307,795,524.47/216,569.01
  6. Step 6: Final answer
    x = 135,327.74

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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.