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Finding the Fourth Proportional to 341.32, 469.48 and 275.68

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Solution

The fourth proportional to 341.32, 469.48 and 275.68 is: 379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.32 : 469.48 = 275.68 : x
  2. Step 2: Convert to fraction form
    341.32/469.48 = 275.68/x
  3. Step 3: Cross multiply
    341.32x = 469.48 × 275.68
  4. Step 4: Simplify right side
    341.32x = 129,426.25
  5. Step 5: Solve for x
    x = 129,426.25/341.32
  6. Step 6: Final answer
    x = 379.19

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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.