Home / 208,731.55-288,049.65-113,238.24

Finding the Fourth Proportional to 208,731.55, 288,049.65 and 113,238.24

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Solution

The fourth proportional to 208,731.55, 288,049.65 and 113,238.24 is: 156,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,731.55 : 288,049.65 = 113,238.24 : x
  2. Step 2: Convert to fraction form
    208,731.55/288,049.65 = 113,238.24/x
  3. Step 3: Cross multiply
    208,731.55x = 288,049.65 × 113,238.24
  4. Step 4: Simplify right side
    208,731.55x = 32,618,233,392.18
  5. Step 5: Solve for x
    x = 32,618,233,392.18/208,731.55
  6. Step 6: Final answer
    x = 156,268.82

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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.