Home / 216,591.28-324,892.32-102,712.30

Finding the Fourth Proportional to 216,591.28, 324,892.32 and 102,712.30

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Solution

The fourth proportional to 216,591.28, 324,892.32 and 102,712.30 is: 154,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,591.28 : 324,892.32 = 102,712.30 : x
  2. Step 2: Convert to fraction form
    216,591.28/324,892.32 = 102,712.30/x
  3. Step 3: Cross multiply
    216,591.28x = 324,892.32 × 102,712.30
  4. Step 4: Simplify right side
    216,591.28x = 33,370,437,439.54
  5. Step 5: Solve for x
    x = 33,370,437,439.54/216,591.28
  6. Step 6: Final answer
    x = 154,071.01

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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.