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Finding the Fourth Proportional to 340.92, 469.91 and 247.53

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Solution

The fourth proportional to 340.92, 469.91 and 247.53 is: 341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.92 : 469.91 = 247.53 : x
  2. Step 2: Convert to fraction form
    340.92/469.91 = 247.53/x
  3. Step 3: Cross multiply
    340.92x = 469.91 × 247.53
  4. Step 4: Simplify right side
    340.92x = 116,315.58
  5. Step 5: Solve for x
    x = 116,315.58/340.92
  6. Step 6: Final answer
    x = 341.18

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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.