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Finding the Fourth Proportional to 376.61, 561.60 and 350.65

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Solution

The fourth proportional to 376.61, 561.60 and 350.65 is: 522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.61 : 561.60 = 350.65 : x
  2. Step 2: Convert to fraction form
    376.61/561.60 = 350.65/x
  3. Step 3: Cross multiply
    376.61x = 561.60 × 350.65
  4. Step 4: Simplify right side
    376.61x = 196,925.04
  5. Step 5: Solve for x
    x = 196,925.04/376.61
  6. Step 6: Final answer
    x = 522.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.