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Finding the Fourth Proportional to 220,123.26, 330,184.89 and 208,903.95

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Solution

The fourth proportional to 220,123.26, 330,184.89 and 208,903.95 is: 313,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,123.26 : 330,184.89 = 208,903.95 : x
  2. Step 2: Convert to fraction form
    220,123.26/330,184.89 = 208,903.95/x
  3. Step 3: Cross multiply
    220,123.26x = 330,184.89 × 208,903.95
  4. Step 4: Simplify right side
    220,123.26x = 68,976,927,751.32
  5. Step 5: Solve for x
    x = 68,976,927,751.32/220,123.26
  6. Step 6: Final answer
    x = 313,355.93

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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.