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Finding the Fourth Proportional to 555.92, 766.74 and 369.35

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Solution

The fourth proportional to 555.92, 766.74 and 369.35 is: 509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.92 : 766.74 = 369.35 : x
  2. Step 2: Convert to fraction form
    555.92/766.74 = 369.35/x
  3. Step 3: Cross multiply
    555.92x = 766.74 × 369.35
  4. Step 4: Simplify right side
    555.92x = 283,195.42
  5. Step 5: Solve for x
    x = 283,195.42/555.92
  6. Step 6: Final answer
    x = 509.42

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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.