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Finding the Fourth Proportional to 614.54, 848.28 and 548.93

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Solution

The fourth proportional to 614.54, 848.28 and 548.93 is: 757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.54 : 848.28 = 548.93 : x
  2. Step 2: Convert to fraction form
    614.54/848.28 = 548.93/x
  3. Step 3: Cross multiply
    614.54x = 848.28 × 548.93
  4. Step 4: Simplify right side
    614.54x = 465,646.31
  5. Step 5: Solve for x
    x = 465,646.31/614.54
  6. Step 6: Final answer
    x = 757.72

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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.