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Finding the Fourth Proportional to 565.18, 847.91 and 272.70

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Solution

The fourth proportional to 565.18, 847.91 and 272.70 is: 409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.18 : 847.91 = 272.70 : x
  2. Step 2: Convert to fraction form
    565.18/847.91 = 272.70/x
  3. Step 3: Cross multiply
    565.18x = 847.91 × 272.70
  4. Step 4: Simplify right side
    565.18x = 231,225.06
  5. Step 5: Solve for x
    x = 231,225.06/565.18
  6. Step 6: Final answer
    x = 409.12

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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.