Home / 209,222.78-288,724.03-113,731.88

Finding the Fourth Proportional to 209,222.78, 288,724.03 and 113,731.88

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Solution

The fourth proportional to 209,222.78, 288,724.03 and 113,731.88 is: 156,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,222.78 : 288,724.03 = 113,731.88 : x
  2. Step 2: Convert to fraction form
    209,222.78/288,724.03 = 113,731.88/x
  3. Step 3: Cross multiply
    209,222.78x = 288,724.03 × 113,731.88
  4. Step 4: Simplify right side
    209,222.78x = 32,837,125,005.13
  5. Step 5: Solve for x
    x = 32,837,125,005.13/209,222.78
  6. Step 6: Final answer
    x = 156,948.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.