Home / 307,836.40-460,920.48-159,781.36

Finding the Fourth Proportional to 307,836.40, 460,920.48 and 159,781.36

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Solution

The fourth proportional to 307,836.40, 460,920.48 and 159,781.36 is: 239,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,836.40 : 460,920.48 = 159,781.36 : x
  2. Step 2: Convert to fraction form
    307,836.40/460,920.48 = 159,781.36/x
  3. Step 3: Cross multiply
    307,836.40x = 460,920.48 × 159,781.36
  4. Step 4: Simplify right side
    307,836.40x = 73,646,501,146.25
  5. Step 5: Solve for x
    x = 73,646,501,146.25/307,836.40
  6. Step 6: Final answer
    x = 239,239.09

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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.