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Finding the Fourth Proportional to 218,208.84, 300,957.22 and 149,339.04

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Solution

The fourth proportional to 218,208.84, 300,957.22 and 149,339.04 is: 205,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,208.84 : 300,957.22 = 149,339.04 : x
  2. Step 2: Convert to fraction form
    218,208.84/300,957.22 = 149,339.04/x
  3. Step 3: Cross multiply
    218,208.84x = 300,957.22 × 149,339.04
  4. Step 4: Simplify right side
    218,208.84x = 44,944,662,315.87
  5. Step 5: Solve for x
    x = 44,944,662,315.87/218,208.84
  6. Step 6: Final answer
    x = 205,970.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.