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Finding the Fourth Proportional to 895.92, 1,343.39 and 279.46

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Solution

The fourth proportional to 895.92, 1,343.39 and 279.46 is: 419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.92 : 1,343.39 = 279.46 : x
  2. Step 2: Convert to fraction form
    895.92/1,343.39 = 279.46/x
  3. Step 3: Cross multiply
    895.92x = 1,343.39 × 279.46
  4. Step 4: Simplify right side
    895.92x = 375,423.77
  5. Step 5: Solve for x
    x = 375,423.77/895.92
  6. Step 6: Final answer
    x = 419.04

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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.