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Finding the Fourth Proportional to 894.20, 1,341.63 and 346.55

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Solution

The fourth proportional to 894.20, 1,341.63 and 346.55 is: 519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.20 : 1,341.63 = 346.55 : x
  2. Step 2: Convert to fraction form
    894.20/1,341.63 = 346.55/x
  3. Step 3: Cross multiply
    894.20x = 1,341.63 × 346.55
  4. Step 4: Simplify right side
    894.20x = 464,935.17
  5. Step 5: Solve for x
    x = 464,935.17/894.20
  6. Step 6: Final answer
    x = 519.95

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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.