Home / 219,184.32-328,658.02-76,992.87

Finding the Fourth Proportional to 219,184.32, 328,658.02 and 76,992.87

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Solution

The fourth proportional to 219,184.32, 328,658.02 and 76,992.87 is: 115,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,184.32 : 328,658.02 = 76,992.87 : x
  2. Step 2: Convert to fraction form
    219,184.32/328,658.02 = 76,992.87/x
  3. Step 3: Cross multiply
    219,184.32x = 328,658.02 × 76,992.87
  4. Step 4: Simplify right side
    219,184.32x = 25,304,324,015.84
  5. Step 5: Solve for x
    x = 25,304,324,015.84/219,184.32
  6. Step 6: Final answer
    x = 115,447.69

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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.