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Finding the Fourth Proportional to 566.30, 849.45 and 477.20

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Solution

The fourth proportional to 566.30, 849.45 and 477.20 is: 715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.30 : 849.45 = 477.20 : x
  2. Step 2: Convert to fraction form
    566.30/849.45 = 477.20/x
  3. Step 3: Cross multiply
    566.30x = 849.45 × 477.20
  4. Step 4: Simplify right side
    566.30x = 405,357.54
  5. Step 5: Solve for x
    x = 405,357.54/566.30
  6. Step 6: Final answer
    x = 715.80

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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.