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Finding the Fourth Proportional to 453,747.32, 680,621.06 and 187,215

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Solution

The fourth proportional to 453,747.32, 680,621.06 and 187,215 is: 280,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,747.32 : 680,621.06 = 187,215 : x
  2. Step 2: Convert to fraction form
    453,747.32/680,621.06 = 187,215/x
  3. Step 3: Cross multiply
    453,747.32x = 680,621.06 × 187,215
  4. Step 4: Simplify right side
    453,747.32x = 127,422,471,747.90
  5. Step 5: Solve for x
    x = 127,422,471,747.90/453,747.32
  6. Step 6: Final answer
    x = 280,822.53

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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.