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Finding the Fourth Proportional to 614.25, 848.88 and 548.64

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Solution

The fourth proportional to 614.25, 848.88 and 548.64 is: 758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.25 : 848.88 = 548.64 : x
  2. Step 2: Convert to fraction form
    614.25/848.88 = 548.64/x
  3. Step 3: Cross multiply
    614.25x = 848.88 × 548.64
  4. Step 4: Simplify right side
    614.25x = 465,729.52
  5. Step 5: Solve for x
    x = 465,729.52/614.25
  6. Step 6: Final answer
    x = 758.21

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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.