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Finding the Fourth Proportional to 379.19, 570.88 and 297.36

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Solution

The fourth proportional to 379.19, 570.88 and 297.36 is: 447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.19 : 570.88 = 297.36 : x
  2. Step 2: Convert to fraction form
    379.19/570.88 = 297.36/x
  3. Step 3: Cross multiply
    379.19x = 570.88 × 297.36
  4. Step 4: Simplify right side
    379.19x = 169,754.02
  5. Step 5: Solve for x
    x = 169,754.02/379.19
  6. Step 6: Final answer
    x = 447.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.