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Finding the Fourth Proportional to 557.32, 768.55 and 367.93

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Solution

The fourth proportional to 557.32, 768.55 and 367.93 is: 507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.32 : 768.55 = 367.93 : x
  2. Step 2: Convert to fraction form
    557.32/768.55 = 367.93/x
  3. Step 3: Cross multiply
    557.32x = 768.55 × 367.93
  4. Step 4: Simplify right side
    557.32x = 282,772.60
  5. Step 5: Solve for x
    x = 282,772.60/557.32
  6. Step 6: Final answer
    x = 507.38

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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.