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Finding the Fourth Proportional to 895.17, 1,342.22 and 401.57

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Solution

The fourth proportional to 895.17, 1,342.22 and 401.57 is: 602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.17 : 1,342.22 = 401.57 : x
  2. Step 2: Convert to fraction form
    895.17/1,342.22 = 401.57/x
  3. Step 3: Cross multiply
    895.17x = 1,342.22 × 401.57
  4. Step 4: Simplify right side
    895.17x = 539,001.41
  5. Step 5: Solve for x
    x = 539,001.41/895.17
  6. Step 6: Final answer
    x = 602.12

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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.