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Finding the Fourth Proportional to 572.57, 790.67 and 365.69

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Solution

The fourth proportional to 572.57, 790.67 and 365.69 is: 504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.57 : 790.67 = 365.69 : x
  2. Step 2: Convert to fraction form
    572.57/790.67 = 365.69/x
  3. Step 3: Cross multiply
    572.57x = 790.67 × 365.69
  4. Step 4: Simplify right side
    572.57x = 289,138.28
  5. Step 5: Solve for x
    x = 289,138.28/572.57
  6. Step 6: Final answer
    x = 504.98

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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.