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Finding the Fourth Proportional to 340.57, 469.99 and 185.32

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Solution

The fourth proportional to 340.57, 469.99 and 185.32 is: 255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.57 : 469.99 = 185.32 : x
  2. Step 2: Convert to fraction form
    340.57/469.99 = 185.32/x
  3. Step 3: Cross multiply
    340.57x = 469.99 × 185.32
  4. Step 4: Simplify right side
    340.57x = 87,098.55
  5. Step 5: Solve for x
    x = 87,098.55/340.57
  6. Step 6: Final answer
    x = 255.74

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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.