Home / 208,815.76-288,165.94-113,322.48

Finding the Fourth Proportional to 208,815.76, 288,165.94 and 113,322.48

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Solution

The fourth proportional to 208,815.76, 288,165.94 and 113,322.48 is: 156,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,815.76 : 288,165.94 = 113,322.48 : x
  2. Step 2: Convert to fraction form
    208,815.76/288,165.94 = 113,322.48/x
  3. Step 3: Cross multiply
    208,815.76x = 288,165.94 × 113,322.48
  4. Step 4: Simplify right side
    208,815.76x = 32,655,678,972.33
  5. Step 5: Solve for x
    x = 32,655,678,972.33/208,815.76
  6. Step 6: Final answer
    x = 156,385.13

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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.