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Finding the Fourth Proportional to 557.96, 770.51 and 359.14

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Solution

The fourth proportional to 557.96, 770.51 and 359.14 is: 495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.96 : 770.51 = 359.14 : x
  2. Step 2: Convert to fraction form
    557.96/770.51 = 359.14/x
  3. Step 3: Cross multiply
    557.96x = 770.51 × 359.14
  4. Step 4: Simplify right side
    557.96x = 276,720.37
  5. Step 5: Solve for x
    x = 276,720.37/557.96
  6. Step 6: Final answer
    x = 495.95

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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.