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Finding the Fourth Proportional to 245,773.80, 368,680.59 and 68,280.84

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Solution

The fourth proportional to 245,773.80, 368,680.59 and 68,280.84 is: 102,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,773.80 : 368,680.59 = 68,280.84 : x
  2. Step 2: Convert to fraction form
    245,773.80/368,680.59 = 68,280.84/x
  3. Step 3: Cross multiply
    245,773.80x = 368,680.59 × 68,280.84
  4. Step 4: Simplify right side
    245,773.80x = 25,173,820,376.90
  5. Step 5: Solve for x
    x = 25,173,820,376.90/245,773.80
  6. Step 6: Final answer
    x = 102,426.79

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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.