Home / 219,332.06-328,948.92-100,889.66

Finding the Fourth Proportional to 219,332.06, 328,948.92 and 100,889.66

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Solution

The fourth proportional to 219,332.06, 328,948.92 and 100,889.66 is: 151,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,332.06 : 328,948.92 = 100,889.66 : x
  2. Step 2: Convert to fraction form
    219,332.06/328,948.92 = 100,889.66/x
  3. Step 3: Cross multiply
    219,332.06x = 328,948.92 × 100,889.66
  4. Step 4: Simplify right side
    219,332.06x = 33,187,544,696.17
  5. Step 5: Solve for x
    x = 33,187,544,696.17/219,332.06
  6. Step 6: Final answer
    x = 151,311.87

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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.