Home / 247,074.27-340,999.05-156,438.64

Finding the Fourth Proportional to 247,074.27, 340,999.05 and 156,438.64

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Solution

The fourth proportional to 247,074.27, 340,999.05 and 156,438.64 is: 215,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,074.27 : 340,999.05 = 156,438.64 : x
  2. Step 2: Convert to fraction form
    247,074.27/340,999.05 = 156,438.64/x
  3. Step 3: Cross multiply
    247,074.27x = 340,999.05 × 156,438.64
  4. Step 4: Simplify right side
    247,074.27x = 53,345,427,623.29
  5. Step 5: Solve for x
    x = 53,345,427,623.29/247,074.27
  6. Step 6: Final answer
    x = 215,908.47

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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.