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Finding the Fourth Proportional to 230,724.70, 346,087.05 and 81,133.90

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Solution

The fourth proportional to 230,724.70, 346,087.05 and 81,133.90 is: 121,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,724.70 : 346,087.05 = 81,133.90 : x
  2. Step 2: Convert to fraction form
    230,724.70/346,087.05 = 81,133.90/x
  3. Step 3: Cross multiply
    230,724.70x = 346,087.05 × 81,133.90
  4. Step 4: Simplify right side
    230,724.70x = 28,079,392,106.00
  5. Step 5: Solve for x
    x = 28,079,392,106.00/230,724.70
  6. Step 6: Final answer
    x = 121,700.85

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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.