Home / 208,642.28-312,963.42-50,872.10

Finding the Fourth Proportional to 208,642.28, 312,963.42 and 50,872.10

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Solution

The fourth proportional to 208,642.28, 312,963.42 and 50,872.10 is: 76,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,642.28 : 312,963.42 = 50,872.10 : x
  2. Step 2: Convert to fraction form
    208,642.28/312,963.42 = 50,872.10/x
  3. Step 3: Cross multiply
    208,642.28x = 312,963.42 × 50,872.10
  4. Step 4: Simplify right side
    208,642.28x = 15,921,104,833.76
  5. Step 5: Solve for x
    x = 15,921,104,833.76/208,642.28
  6. Step 6: Final answer
    x = 76,308.14

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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.