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Finding the Fourth Proportional to 895.31, 1,342.45 and 374.75

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Solution

The fourth proportional to 895.31, 1,342.45 and 374.75 is: 561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.31 : 1,342.45 = 374.75 : x
  2. Step 2: Convert to fraction form
    895.31/1,342.45 = 374.75/x
  3. Step 3: Cross multiply
    895.31x = 1,342.45 × 374.75
  4. Step 4: Simplify right side
    895.31x = 503,083.14
  5. Step 5: Solve for x
    x = 503,083.14/895.31
  6. Step 6: Final answer
    x = 561.91

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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.