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Finding the Fourth Proportional to 370.92, 512.61 and 277.98

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Solution

The fourth proportional to 370.92, 512.61 and 277.98 is: 384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.92 : 512.61 = 277.98 : x
  2. Step 2: Convert to fraction form
    370.92/512.61 = 277.98/x
  3. Step 3: Cross multiply
    370.92x = 512.61 × 277.98
  4. Step 4: Simplify right side
    370.92x = 142,495.33
  5. Step 5: Solve for x
    x = 142,495.33/370.92
  6. Step 6: Final answer
    x = 384.17

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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.