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Finding the Fourth Proportional to 548,375.55, 756,753.08 and 306,655.35

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Solution

The fourth proportional to 548,375.55, 756,753.08 and 306,655.35 is: 423,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,375.55 : 756,753.08 = 306,655.35 : x
  2. Step 2: Convert to fraction form
    548,375.55/756,753.08 = 306,655.35/x
  3. Step 3: Cross multiply
    548,375.55x = 756,753.08 × 306,655.35
  4. Step 4: Simplify right side
    548,375.55x = 232,062,379,077.70
  5. Step 5: Solve for x
    x = 232,062,379,077.70/548,375.55
  6. Step 6: Final answer
    x = 423,181.48

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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.