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Finding the Fourth Proportional to 556.99, 768.08 and 370.49

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Solution

The fourth proportional to 556.99, 768.08 and 370.49 is: 510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.99 : 768.08 = 370.49 : x
  2. Step 2: Convert to fraction form
    556.99/768.08 = 370.49/x
  3. Step 3: Cross multiply
    556.99x = 768.08 × 370.49
  4. Step 4: Simplify right side
    556.99x = 284,563.05
  5. Step 5: Solve for x
    x = 284,563.05/556.99
  6. Step 6: Final answer
    x = 510.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.