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Finding the Fourth Proportional to 846.66, 1,270.24 and 359.75

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Solution

The fourth proportional to 846.66, 1,270.24 and 359.75 is: 539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.66 : 1,270.24 = 359.75 : x
  2. Step 2: Convert to fraction form
    846.66/1,270.24 = 359.75/x
  3. Step 3: Cross multiply
    846.66x = 1,270.24 × 359.75
  4. Step 4: Simplify right side
    846.66x = 456,961.59
  5. Step 5: Solve for x
    x = 456,961.59/846.66
  6. Step 6: Final answer
    x = 539.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.