Home / 208,719.76-288,033.82-113,226.45

Finding the Fourth Proportional to 208,719.76, 288,033.82 and 113,226.45

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Solution

The fourth proportional to 208,719.76, 288,033.82 and 113,226.45 is: 156,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,719.76 : 288,033.82 = 113,226.45 : x
  2. Step 2: Convert to fraction form
    208,719.76/288,033.82 = 113,226.45/x
  3. Step 3: Cross multiply
    208,719.76x = 288,033.82 × 113,226.45
  4. Step 4: Simplify right side
    208,719.76x = 32,613,046,918.54
  5. Step 5: Solve for x
    x = 32,613,046,918.54/208,719.76
  6. Step 6: Final answer
    x = 156,252.80

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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.