Home / 216,296.12-324,444.18-81,385.56

Finding the Fourth Proportional to 216,296.12, 324,444.18 and 81,385.56

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Solution

The fourth proportional to 216,296.12, 324,444.18 and 81,385.56 is: 122,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,296.12 : 324,444.18 = 81,385.56 : x
  2. Step 2: Convert to fraction form
    216,296.12/324,444.18 = 81,385.56/x
  3. Step 3: Cross multiply
    216,296.12x = 324,444.18 × 81,385.56
  4. Step 4: Simplify right side
    216,296.12x = 26,405,071,583.24
  5. Step 5: Solve for x
    x = 26,405,071,583.24/216,296.12
  6. Step 6: Final answer
    x = 122,078.34

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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.