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Finding the Fourth Proportional to 205,463.53, 308,277.05 and 79,069.84

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Solution

The fourth proportional to 205,463.53, 308,277.05 and 79,069.84 is: 118,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,463.53 : 308,277.05 = 79,069.84 : x
  2. Step 2: Convert to fraction form
    205,463.53/308,277.05 = 79,069.84/x
  3. Step 3: Cross multiply
    205,463.53x = 308,277.05 × 79,069.84
  4. Step 4: Simplify right side
    205,463.53x = 24,375,417,019.17
  5. Step 5: Solve for x
    x = 24,375,417,019.17/205,463.53
  6. Step 6: Final answer
    x = 118,636.22

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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.