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Finding the Fourth Proportional to 377.22, 565.78 and 103.34

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Solution

The fourth proportional to 377.22, 565.78 and 103.34 is: 155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.22 : 565.78 = 103.34 : x
  2. Step 2: Convert to fraction form
    377.22/565.78 = 103.34/x
  3. Step 3: Cross multiply
    377.22x = 565.78 × 103.34
  4. Step 4: Simplify right side
    377.22x = 58,467.71
  5. Step 5: Solve for x
    x = 58,467.71/377.22
  6. Step 6: Final answer
    x = 155.00

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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.