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Finding the Fourth Proportional to 266,429.44, 399,724.08 and 112,628.32

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Solution

The fourth proportional to 266,429.44, 399,724.08 and 112,628.32 is: 168,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,429.44 : 399,724.08 = 112,628.32 : x
  2. Step 2: Convert to fraction form
    266,429.44/399,724.08 = 112,628.32/x
  3. Step 3: Cross multiply
    266,429.44x = 399,724.08 × 112,628.32
  4. Step 4: Simplify right side
    266,429.44x = 45,020,251,593.95
  5. Step 5: Solve for x
    x = 45,020,251,593.95/266,429.44
  6. Step 6: Final answer
    x = 168,976.26

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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.