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Finding the Fourth Proportional to 894, 1,340.91 and 235.95

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Solution

The fourth proportional to 894, 1,340.91 and 235.95 is: 353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    894 : 1,340.91 = 235.95 : x
  2. Step 2: Convert to fraction form
    894/1,340.91 = 235.95/x
  3. Step 3: Cross multiply
    894x = 1,340.91 × 235.95
  4. Step 4: Simplify right side
    894x = 316,387.71
  5. Step 5: Solve for x
    x = 316,387.71/894
  6. Step 6: Final answer
    x = 353.90

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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.