Home / 215,242.86-322,863.75-102,581.58

Finding the Fourth Proportional to 215,242.86, 322,863.75 and 102,581.58

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Solution

The fourth proportional to 215,242.86, 322,863.75 and 102,581.58 is: 153,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,242.86 : 322,863.75 = 102,581.58 : x
  2. Step 2: Convert to fraction form
    215,242.86/322,863.75 = 102,581.58/x
  3. Step 3: Cross multiply
    215,242.86x = 322,863.75 × 102,581.58
  4. Step 4: Simplify right side
    215,242.86x = 33,119,873,599.73
  5. Step 5: Solve for x
    x = 33,119,873,599.73/215,242.86
  6. Step 6: Final answer
    x = 153,872.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.