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Finding the Fourth Proportional to 255,630.52, 382,887 and 210,753.28

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Solution

The fourth proportional to 255,630.52, 382,887 and 210,753.28 is: 315,669.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,630.52 : 382,887 = 210,753.28 : x
  2. Step 2: Convert to fraction form
    255,630.52/382,887 = 210,753.28/x
  3. Step 3: Cross multiply
    255,630.52x = 382,887 × 210,753.28
  4. Step 4: Simplify right side
    255,630.52x = 80,694,691,119.36
  5. Step 5: Solve for x
    x = 80,694,691,119.36/255,630.52
  6. Step 6: Final answer
    x = 315,669.24

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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.