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Finding the Fourth Proportional to 295.32, 439.98 and 282.90

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Solution

The fourth proportional to 295.32, 439.98 and 282.90 is: 421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.32 : 439.98 = 282.90 : x
  2. Step 2: Convert to fraction form
    295.32/439.98 = 282.90/x
  3. Step 3: Cross multiply
    295.32x = 439.98 × 282.90
  4. Step 4: Simplify right side
    295.32x = 124,470.34
  5. Step 5: Solve for x
    x = 124,470.34/295.32
  6. Step 6: Final answer
    x = 421.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.