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Finding the Fourth Proportional to 483.47, 725.30 and 194.91

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Solution

The fourth proportional to 483.47, 725.30 and 194.91 is: 292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.47 : 725.30 = 194.91 : x
  2. Step 2: Convert to fraction form
    483.47/725.30 = 194.91/x
  3. Step 3: Cross multiply
    483.47x = 725.30 × 194.91
  4. Step 4: Simplify right side
    483.47x = 141,366.36
  5. Step 5: Solve for x
    x = 141,366.36/483.47
  6. Step 6: Final answer
    x = 292.40

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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.