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Finding the Fourth Proportional to 377.65, 565.93 and 281.35

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Solution

The fourth proportional to 377.65, 565.93 and 281.35 is: 421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.65 : 565.93 = 281.35 : x
  2. Step 2: Convert to fraction form
    377.65/565.93 = 281.35/x
  3. Step 3: Cross multiply
    377.65x = 565.93 × 281.35
  4. Step 4: Simplify right side
    377.65x = 159,224.41
  5. Step 5: Solve for x
    x = 159,224.41/377.65
  6. Step 6: Final answer
    x = 421.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.