Home / 208,731.17-288,049.13-113,237.86

Finding the Fourth Proportional to 208,731.17, 288,049.13 and 113,237.86

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Solution

The fourth proportional to 208,731.17, 288,049.13 and 113,237.86 is: 156,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,731.17 : 288,049.13 = 113,237.86 : x
  2. Step 2: Convert to fraction form
    208,731.17/288,049.13 = 113,237.86/x
  3. Step 3: Cross multiply
    208,731.17x = 288,049.13 × 113,237.86
  4. Step 4: Simplify right side
    208,731.17x = 32,618,066,619.03
  5. Step 5: Solve for x
    x = 32,618,066,619.03/208,731.17
  6. Step 6: Final answer
    x = 156,268.31

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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.