Home / 208,917.86-288,305.08-113,422.10

Finding the Fourth Proportional to 208,917.86, 288,305.08 and 113,422.10

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Solution

The fourth proportional to 208,917.86, 288,305.08 and 113,422.10 is: 156,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,917.86 : 288,305.08 = 113,422.10 : x
  2. Step 2: Convert to fraction form
    208,917.86/288,305.08 = 113,422.10/x
  3. Step 3: Cross multiply
    208,917.86x = 288,305.08 × 113,422.10
  4. Step 4: Simplify right side
    208,917.86x = 32,700,167,614.27
  5. Step 5: Solve for x
    x = 32,700,167,614.27/208,917.86
  6. Step 6: Final answer
    x = 156,521.65

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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.