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Finding the Fourth Proportional to 652.27, 975.97 and 378.49

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Solution

The fourth proportional to 652.27, 975.97 and 378.49 is: 566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.27 : 975.97 = 378.49 : x
  2. Step 2: Convert to fraction form
    652.27/975.97 = 378.49/x
  3. Step 3: Cross multiply
    652.27x = 975.97 × 378.49
  4. Step 4: Simplify right side
    652.27x = 369,394.89
  5. Step 5: Solve for x
    x = 369,394.89/652.27
  6. Step 6: Final answer
    x = 566.32

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1.5x scale

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.