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Finding the Fourth Proportional to 895.72, 1,343.22 and 310.63

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Solution

The fourth proportional to 895.72, 1,343.22 and 310.63 is: 465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.72 : 1,343.22 = 310.63 : x
  2. Step 2: Convert to fraction form
    895.72/1,343.22 = 310.63/x
  3. Step 3: Cross multiply
    895.72x = 1,343.22 × 310.63
  4. Step 4: Simplify right side
    895.72x = 417,244.43
  5. Step 5: Solve for x
    x = 417,244.43/895.72
  6. Step 6: Final answer
    x = 465.82

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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.