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Finding the Fourth Proportional to 377.30, 561.72 and 375.50

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Solution

The fourth proportional to 377.30, 561.72 and 375.50 is: 559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.30 : 561.72 = 375.50 : x
  2. Step 2: Convert to fraction form
    377.30/561.72 = 375.50/x
  3. Step 3: Cross multiply
    377.30x = 561.72 × 375.50
  4. Step 4: Simplify right side
    377.30x = 210,925.86
  5. Step 5: Solve for x
    x = 210,925.86/377.30
  6. Step 6: Final answer
    x = 559.04

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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.