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Finding the Fourth Proportional to 255,360.56, 382,979.32 and 113,127.24

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Solution

The fourth proportional to 255,360.56, 382,979.32 and 113,127.24 is: 169,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,360.56 : 382,979.32 = 113,127.24 : x
  2. Step 2: Convert to fraction form
    255,360.56/382,979.32 = 113,127.24/x
  3. Step 3: Cross multiply
    255,360.56x = 382,979.32 × 113,127.24
  4. Step 4: Simplify right side
    255,360.56x = 43,325,393,448.68
  5. Step 5: Solve for x
    x = 43,325,393,448.68/255,360.56
  6. Step 6: Final answer
    x = 169,663.61

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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.