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Finding the Fourth Proportional to 275,951.17, 380,844.19 and 153,455.77

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Solution

The fourth proportional to 275,951.17, 380,844.19 and 153,455.77 is: 211,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,951.17 : 380,844.19 = 153,455.77 : x
  2. Step 2: Convert to fraction form
    275,951.17/380,844.19 = 153,455.77/x
  3. Step 3: Cross multiply
    275,951.17x = 380,844.19 × 153,455.77
  4. Step 4: Simplify right side
    275,951.17x = 58,442,738,426.48
  5. Step 5: Solve for x
    x = 58,442,738,426.48/275,951.17
  6. Step 6: Final answer
    x = 211,786.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.