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Finding the Fourth Proportional to 523.85, 722.86 and 302.77

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Solution

The fourth proportional to 523.85, 722.86 and 302.77 is: 417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.85 : 722.86 = 302.77 : x
  2. Step 2: Convert to fraction form
    523.85/722.86 = 302.77/x
  3. Step 3: Cross multiply
    523.85x = 722.86 × 302.77
  4. Step 4: Simplify right side
    523.85x = 218,855.19
  5. Step 5: Solve for x
    x = 218,855.19/523.85
  6. Step 6: Final answer
    x = 417.79

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Find fourth proportional to 261.92, 361.43 and 151.38
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Similar ratio
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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.