Home / 240,905.34-332,449.21-138,929.33

Finding the Fourth Proportional to 240,905.34, 332,449.21 and 138,929.33

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Solution

The fourth proportional to 240,905.34, 332,449.21 and 138,929.33 is: 191,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,905.34 : 332,449.21 = 138,929.33 : x
  2. Step 2: Convert to fraction form
    240,905.34/332,449.21 = 138,929.33/x
  3. Step 3: Cross multiply
    240,905.34x = 332,449.21 × 138,929.33
  4. Step 4: Simplify right side
    240,905.34x = 46,186,945,139.09
  5. Step 5: Solve for x
    x = 46,186,945,139.09/240,905.34
  6. Step 6: Final answer
    x = 191,722.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.