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Finding the Fourth Proportional to 571.30, 857.27 and 246.64

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Solution

The fourth proportional to 571.30, 857.27 and 246.64 is: 370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.30 : 857.27 = 246.64 : x
  2. Step 2: Convert to fraction form
    571.30/857.27 = 246.64/x
  3. Step 3: Cross multiply
    571.30x = 857.27 × 246.64
  4. Step 4: Simplify right side
    571.30x = 211,437.07
  5. Step 5: Solve for x
    x = 211,437.07/571.30
  6. Step 6: Final answer
    x = 370.10

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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.