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Finding the Fourth Proportional to 561.74, 842.42 and 237.02

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Solution

The fourth proportional to 561.74, 842.42 and 237.02 is: 355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.74 : 842.42 = 237.02 : x
  2. Step 2: Convert to fraction form
    561.74/842.42 = 237.02/x
  3. Step 3: Cross multiply
    561.74x = 842.42 × 237.02
  4. Step 4: Simplify right side
    561.74x = 199,670.39
  5. Step 5: Solve for x
    x = 199,670.39/561.74
  6. Step 6: Final answer
    x = 355.45

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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.