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Finding the Fourth Proportional to 486.03, 670.98 and 375.27

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Solution

The fourth proportional to 486.03, 670.98 and 375.27 is: 518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.03 : 670.98 = 375.27 : x
  2. Step 2: Convert to fraction form
    486.03/670.98 = 375.27/x
  3. Step 3: Cross multiply
    486.03x = 670.98 × 375.27
  4. Step 4: Simplify right side
    486.03x = 251,798.66
  5. Step 5: Solve for x
    x = 251,798.66/486.03
  6. Step 6: Final answer
    x = 518.07

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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.