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Finding the Fourth Proportional to 275,717.52, 380,393.28 and 180,280.08

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Solution

The fourth proportional to 275,717.52, 380,393.28 and 180,280.08 is: 248,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,717.52 : 380,393.28 = 180,280.08 : x
  2. Step 2: Convert to fraction form
    275,717.52/380,393.28 = 180,280.08/x
  3. Step 3: Cross multiply
    275,717.52x = 380,393.28 × 180,280.08
  4. Step 4: Simplify right side
    275,717.52x = 68,577,330,949.86
  5. Step 5: Solve for x
    x = 68,577,330,949.86/275,717.52
  6. Step 6: Final answer
    x = 248,723.15

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1.5x scale

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.