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Finding the Fourth Proportional to 476.48, 657.70 and 365.81

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Solution

The fourth proportional to 476.48, 657.70 and 365.81 is: 504.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.48 : 657.70 = 365.81 : x
  2. Step 2: Convert to fraction form
    476.48/657.70 = 365.81/x
  3. Step 3: Cross multiply
    476.48x = 657.70 × 365.81
  4. Step 4: Simplify right side
    476.48x = 240,593.24
  5. Step 5: Solve for x
    x = 240,593.24/476.48
  6. Step 6: Final answer
    x = 504.94

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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.