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Finding the Fourth Proportional to 370.93, 511.93 and 213.59

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Solution

The fourth proportional to 370.93, 511.93 and 213.59 is: 294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.93 : 511.93 = 213.59 : x
  2. Step 2: Convert to fraction form
    370.93/511.93 = 213.59/x
  3. Step 3: Cross multiply
    370.93x = 511.93 × 213.59
  4. Step 4: Simplify right side
    370.93x = 109,342.10
  5. Step 5: Solve for x
    x = 109,342.10/370.93
  6. Step 6: Final answer
    x = 294.78

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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.