Home / 208,867.98-288,243.87-113,380.74

Finding the Fourth Proportional to 208,867.98, 288,243.87 and 113,380.74

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Solution

The fourth proportional to 208,867.98, 288,243.87 and 113,380.74 is: 156,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,867.98 : 288,243.87 = 113,380.74 : x
  2. Step 2: Convert to fraction form
    208,867.98/288,243.87 = 113,380.74/x
  3. Step 3: Cross multiply
    208,867.98x = 288,243.87 × 113,380.74
  4. Step 4: Simplify right side
    208,867.98x = 32,681,303,281.06
  5. Step 5: Solve for x
    x = 32,681,303,281.06/208,867.98
  6. Step 6: Final answer
    x = 156,468.71

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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.