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Finding the Fourth Proportional to 602.07, 902.70 and 371.40

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Solution

The fourth proportional to 602.07, 902.70 and 371.40 is: 556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.07 : 902.70 = 371.40 : x
  2. Step 2: Convert to fraction form
    602.07/902.70 = 371.40/x
  3. Step 3: Cross multiply
    602.07x = 902.70 × 371.40
  4. Step 4: Simplify right side
    602.07x = 335,262.78
  5. Step 5: Solve for x
    x = 335,262.78/602.07
  6. Step 6: Final answer
    x = 556.85

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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.