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Finding the Fourth Proportional to 400.60, 598.19 and 346.60

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Solution

The fourth proportional to 400.60, 598.19 and 346.60 is: 517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.60 : 598.19 = 346.60 : x
  2. Step 2: Convert to fraction form
    400.60/598.19 = 346.60/x
  3. Step 3: Cross multiply
    400.60x = 598.19 × 346.60
  4. Step 4: Simplify right side
    400.60x = 207,332.65
  5. Step 5: Solve for x
    x = 207,332.65/400.60
  6. Step 6: Final answer
    x = 517.56

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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.