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Finding the Fourth Proportional to 442.19, 610.20 and 276.32

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Solution

The fourth proportional to 442.19, 610.20 and 276.32 is: 381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.19 : 610.20 = 276.32 : x
  2. Step 2: Convert to fraction form
    442.19/610.20 = 276.32/x
  3. Step 3: Cross multiply
    442.19x = 610.20 × 276.32
  4. Step 4: Simplify right side
    442.19x = 168,610.46
  5. Step 5: Solve for x
    x = 168,610.46/442.19
  6. Step 6: Final answer
    x = 381.31

Related Problems

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Double scale
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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.