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Finding the Fourth Proportional to 879.93, 1,319.96 and 230.66

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Solution

The fourth proportional to 879.93, 1,319.96 and 230.66 is: 346.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    879.93 : 1,319.96 = 230.66 : x
  2. Step 2: Convert to fraction form
    879.93/1,319.96 = 230.66/x
  3. Step 3: Cross multiply
    879.93x = 1,319.96 × 230.66
  4. Step 4: Simplify right side
    879.93x = 304,455.37
  5. Step 5: Solve for x
    x = 304,455.37/879.93
  6. Step 6: Final answer
    x = 346.00

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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.