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Finding the Fourth Proportional to 377.19, 520.29 and 266.58

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Solution

The fourth proportional to 377.19, 520.29 and 266.58 is: 367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.19 : 520.29 = 266.58 : x
  2. Step 2: Convert to fraction form
    377.19/520.29 = 266.58/x
  3. Step 3: Cross multiply
    377.19x = 520.29 × 266.58
  4. Step 4: Simplify right side
    377.19x = 138,698.91
  5. Step 5: Solve for x
    x = 138,698.91/377.19
  6. Step 6: Final answer
    x = 367.72

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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.