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Finding the Fourth Proportional to 585.60, 879.76 and 366.90

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Solution

The fourth proportional to 585.60, 879.76 and 366.90 is: 551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.60 : 879.76 = 366.90 : x
  2. Step 2: Convert to fraction form
    585.60/879.76 = 366.90/x
  3. Step 3: Cross multiply
    585.60x = 879.76 × 366.90
  4. Step 4: Simplify right side
    585.60x = 322,783.94
  5. Step 5: Solve for x
    x = 322,783.94/585.60
  6. Step 6: Final answer
    x = 551.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.