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Finding the Fourth Proportional to 370.94, 511.68 and 260.54

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Solution

The fourth proportional to 370.94, 511.68 and 260.54 is: 359.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.94 : 511.68 = 260.54 : x
  2. Step 2: Convert to fraction form
    370.94/511.68 = 260.54/x
  3. Step 3: Cross multiply
    370.94x = 511.68 × 260.54
  4. Step 4: Simplify right side
    370.94x = 133,313.11
  5. Step 5: Solve for x
    x = 133,313.11/370.94
  6. Step 6: Final answer
    x = 359.39

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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.