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Finding the Fourth Proportional to 256,551.20, 384,868.92 and 79,058.24

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Solution

The fourth proportional to 256,551.20, 384,868.92 and 79,058.24 is: 118,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,551.20 : 384,868.92 = 79,058.24 : x
  2. Step 2: Convert to fraction form
    256,551.20/384,868.92 = 79,058.24/x
  3. Step 3: Cross multiply
    256,551.20x = 384,868.92 × 79,058.24
  4. Step 4: Simplify right side
    256,551.20x = 30,427,059,445.90
  5. Step 5: Solve for x
    x = 30,427,059,445.90/256,551.20
  6. Step 6: Final answer
    x = 118,600.34

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1.5x scale

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.