Home / 208,932.78-288,329.31-113,440.26

Finding the Fourth Proportional to 208,932.78, 288,329.31 and 113,440.26

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Solution

The fourth proportional to 208,932.78, 288,329.31 and 113,440.26 is: 156,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,932.78 : 288,329.31 = 113,440.26 : x
  2. Step 2: Convert to fraction form
    208,932.78/288,329.31 = 113,440.26/x
  3. Step 3: Cross multiply
    208,932.78x = 288,329.31 × 113,440.26
  4. Step 4: Simplify right side
    208,932.78x = 32,708,151,892.02
  5. Step 5: Solve for x
    x = 32,708,151,892.02/208,932.78
  6. Step 6: Final answer
    x = 156,548.68

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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.