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Finding the Fourth Proportional to 585.58, 878.54 and 238.74

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Solution

The fourth proportional to 585.58, 878.54 and 238.74 is: 358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.58 : 878.54 = 238.74 : x
  2. Step 2: Convert to fraction form
    585.58/878.54 = 238.74/x
  3. Step 3: Cross multiply
    585.58x = 878.54 × 238.74
  4. Step 4: Simplify right side
    585.58x = 209,742.64
  5. Step 5: Solve for x
    x = 209,742.64/585.58
  6. Step 6: Final answer
    x = 358.18

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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.