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Finding the Fourth Proportional to 376.65, 520.02 and 266.58

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Solution

The fourth proportional to 376.65, 520.02 and 266.58 is: 368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.65 : 520.02 = 266.58 : x
  2. Step 2: Convert to fraction form
    376.65/520.02 = 266.58/x
  3. Step 3: Cross multiply
    376.65x = 520.02 × 266.58
  4. Step 4: Simplify right side
    376.65x = 138,626.93
  5. Step 5: Solve for x
    x = 138,626.93/376.65
  6. Step 6: Final answer
    x = 368.05

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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.