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Finding the Fourth Proportional to 292.86, 439.43 and 201.74

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Solution

The fourth proportional to 292.86, 439.43 and 201.74 is: 302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.86 : 439.43 = 201.74 : x
  2. Step 2: Convert to fraction form
    292.86/439.43 = 201.74/x
  3. Step 3: Cross multiply
    292.86x = 439.43 × 201.74
  4. Step 4: Simplify right side
    292.86x = 88,647.40
  5. Step 5: Solve for x
    x = 88,647.40/292.86
  6. Step 6: Final answer
    x = 302.70

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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.