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Finding the Fourth Proportional to 548.10, 807.30 and 548.10

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Solution

The fourth proportional to 548.10, 807.30 and 548.10 is: 807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.10 : 807.30 = 548.10 : x
  2. Step 2: Convert to fraction form
    548.10/807.30 = 548.10/x
  3. Step 3: Cross multiply
    548.10x = 807.30 × 548.10
  4. Step 4: Simplify right side
    548.10x = 442,481.13
  5. Step 5: Solve for x
    x = 442,481.13/548.10
  6. Step 6: Final answer
    x = 807.30

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.