Home / 221,585.17-331,882.02-103,078.93

Finding the Fourth Proportional to 221,585.17, 331,882.02 and 103,078.93

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Solution

The fourth proportional to 221,585.17, 331,882.02 and 103,078.93 is: 154,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,585.17 : 331,882.02 = 103,078.93 : x
  2. Step 2: Convert to fraction form
    221,585.17/331,882.02 = 103,078.93/x
  3. Step 3: Cross multiply
    221,585.17x = 331,882.02 × 103,078.93
  4. Step 4: Simplify right side
    221,585.17x = 34,210,043,507.84
  5. Step 5: Solve for x
    x = 34,210,043,507.84/221,585.17
  6. Step 6: Final answer
    x = 154,387.78

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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.