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Finding the Fourth Proportional to 220,545.98, 330,862.04 and 70,774.75

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Solution

The fourth proportional to 220,545.98, 330,862.04 and 70,774.75 is: 106,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,545.98 : 330,862.04 = 70,774.75 : x
  2. Step 2: Convert to fraction form
    220,545.98/330,862.04 = 70,774.75/x
  3. Step 3: Cross multiply
    220,545.98x = 330,862.04 × 70,774.75
  4. Step 4: Simplify right side
    220,545.98x = 23,416,678,165.49
  5. Step 5: Solve for x
    x = 23,416,678,165.49/220,545.98
  6. Step 6: Final answer
    x = 106,175.95

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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.