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Finding the Fourth Proportional to 410.29, 565.34 and 279.07

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Solution

The fourth proportional to 410.29, 565.34 and 279.07 is: 384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.29 : 565.34 = 279.07 : x
  2. Step 2: Convert to fraction form
    410.29/565.34 = 279.07/x
  3. Step 3: Cross multiply
    410.29x = 565.34 × 279.07
  4. Step 4: Simplify right side
    410.29x = 157,765.21
  5. Step 5: Solve for x
    x = 157,765.21/410.29
  6. Step 6: Final answer
    x = 384.53

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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.