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Finding the Fourth Proportional to 610.42, 842.34 and 377.50

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Solution

The fourth proportional to 610.42, 842.34 and 377.50 is: 520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.42 : 842.34 = 377.50 : x
  2. Step 2: Convert to fraction form
    610.42/842.34 = 377.50/x
  3. Step 3: Cross multiply
    610.42x = 842.34 × 377.50
  4. Step 4: Simplify right side
    610.42x = 317,983.35
  5. Step 5: Solve for x
    x = 317,983.35/610.42
  6. Step 6: Final answer
    x = 520.93

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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.