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Finding the Fourth Proportional to 337.77, 505.84 and 279.57

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Solution

The fourth proportional to 337.77, 505.84 and 279.57 is: 418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.77 : 505.84 = 279.57 : x
  2. Step 2: Convert to fraction form
    337.77/505.84 = 279.57/x
  3. Step 3: Cross multiply
    337.77x = 505.84 × 279.57
  4. Step 4: Simplify right side
    337.77x = 141,415.16
  5. Step 5: Solve for x
    x = 141,415.16/337.77
  6. Step 6: Final answer
    x = 418.67

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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.