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Finding the Fourth Proportional to 230,562.05, 345,875.45 and 80,768.06

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Solution

The fourth proportional to 230,562.05, 345,875.45 and 80,768.06 is: 121,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,562.05 : 345,875.45 = 80,768.06 : x
  2. Step 2: Convert to fraction form
    230,562.05/345,875.45 = 80,768.06/x
  3. Step 3: Cross multiply
    230,562.05x = 345,875.45 × 80,768.06
  4. Step 4: Simplify right side
    230,562.05x = 27,935,686,964.91
  5. Step 5: Solve for x
    x = 27,935,686,964.91/230,562.05
  6. Step 6: Final answer
    x = 121,163.42

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1.5x scale

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.