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Finding the Fourth Proportional to 442.60, 660.83 and 372.74

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Solution

The fourth proportional to 442.60, 660.83 and 372.74 is: 556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.60 : 660.83 = 372.74 : x
  2. Step 2: Convert to fraction form
    442.60/660.83 = 372.74/x
  3. Step 3: Cross multiply
    442.60x = 660.83 × 372.74
  4. Step 4: Simplify right side
    442.60x = 246,312.61
  5. Step 5: Solve for x
    x = 246,312.61/442.60
  6. Step 6: Final answer
    x = 556.52

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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.