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Finding the Fourth Proportional to 230,998.40, 346,508.40 and 73,239.20

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Solution

The fourth proportional to 230,998.40, 346,508.40 and 73,239.20 is: 109,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,998.40 : 346,508.40 = 73,239.20 : x
  2. Step 2: Convert to fraction form
    230,998.40/346,508.40 = 73,239.20/x
  3. Step 3: Cross multiply
    230,998.40x = 346,508.40 × 73,239.20
  4. Step 4: Simplify right side
    230,998.40x = 25,377,998,009.28
  5. Step 5: Solve for x
    x = 25,377,998,009.28/230,998.40
  6. Step 6: Final answer
    x = 109,862.22

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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.