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Finding the Fourth Proportional to 873.61, 1,310.49 and 224.35

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Solution

The fourth proportional to 873.61, 1,310.49 and 224.35 is: 336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.61 : 1,310.49 = 224.35 : x
  2. Step 2: Convert to fraction form
    873.61/1,310.49 = 224.35/x
  3. Step 3: Cross multiply
    873.61x = 1,310.49 × 224.35
  4. Step 4: Simplify right side
    873.61x = 294,005.16
  5. Step 5: Solve for x
    x = 294,005.16/873.61
  6. Step 6: Final answer
    x = 336.54

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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.