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Finding the Fourth Proportional to 366,878.34, 550,318.32 and 100,642.68

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Solution

The fourth proportional to 366,878.34, 550,318.32 and 100,642.68 is: 150,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,878.34 : 550,318.32 = 100,642.68 : x
  2. Step 2: Convert to fraction form
    366,878.34/550,318.32 = 100,642.68/x
  3. Step 3: Cross multiply
    366,878.34x = 550,318.32 × 100,642.68
  4. Step 4: Simplify right side
    366,878.34x = 55,385,510,577.90
  5. Step 5: Solve for x
    x = 55,385,510,577.90/366,878.34
  6. Step 6: Final answer
    x = 150,964.24

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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.