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Finding the Fourth Proportional to 571.74, 857.60 and 297.68

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Solution

The fourth proportional to 571.74, 857.60 and 297.68 is: 446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.74 : 857.60 = 297.68 : x
  2. Step 2: Convert to fraction form
    571.74/857.60 = 297.68/x
  3. Step 3: Cross multiply
    571.74x = 857.60 × 297.68
  4. Step 4: Simplify right side
    571.74x = 255,290.37
  5. Step 5: Solve for x
    x = 255,290.37/571.74
  6. Step 6: Final answer
    x = 446.51

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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.