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Finding the Fourth Proportional to 523.10, 786.39 and 370.12

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Solution

The fourth proportional to 523.10, 786.39 and 370.12 is: 556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.10 : 786.39 = 370.12 : x
  2. Step 2: Convert to fraction form
    523.10/786.39 = 370.12/x
  3. Step 3: Cross multiply
    523.10x = 786.39 × 370.12
  4. Step 4: Simplify right side
    523.10x = 291,058.67
  5. Step 5: Solve for x
    x = 291,058.67/523.10
  6. Step 6: Final answer
    x = 556.41

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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.