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Finding the Fourth Proportional to 370.60, 511.59 and 282.09

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Solution

The fourth proportional to 370.60, 511.59 and 282.09 is: 389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.60 : 511.59 = 282.09 : x
  2. Step 2: Convert to fraction form
    370.60/511.59 = 282.09/x
  3. Step 3: Cross multiply
    370.60x = 511.59 × 282.09
  4. Step 4: Simplify right side
    370.60x = 144,314.42
  5. Step 5: Solve for x
    x = 144,314.42/370.60
  6. Step 6: Final answer
    x = 389.41

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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.