Home / 219,036.33-328,586.82-69,242.61

Finding the Fourth Proportional to 219,036.33, 328,586.82 and 69,242.61

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Solution

The fourth proportional to 219,036.33, 328,586.82 and 69,242.61 is: 103,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,036.33 : 328,586.82 = 69,242.61 : x
  2. Step 2: Convert to fraction form
    219,036.33/328,586.82 = 69,242.61/x
  3. Step 3: Cross multiply
    219,036.33x = 328,586.82 × 69,242.61
  4. Step 4: Simplify right side
    219,036.33x = 22,752,209,028.40
  5. Step 5: Solve for x
    x = 22,752,209,028.40/219,036.33
  6. Step 6: Final answer
    x = 103,874.13

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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.