Home / 240,790.12-332,287.01-138,815.78

Finding the Fourth Proportional to 240,790.12, 332,287.01 and 138,815.78

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Solution

The fourth proportional to 240,790.12, 332,287.01 and 138,815.78 is: 191,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,790.12 : 332,287.01 = 138,815.78 : x
  2. Step 2: Convert to fraction form
    240,790.12/332,287.01 = 138,815.78/x
  3. Step 3: Cross multiply
    240,790.12x = 332,287.01 × 138,815.78
  4. Step 4: Simplify right side
    240,790.12x = 46,126,678,642.06
  5. Step 5: Solve for x
    x = 46,126,678,642.06/240,790.12
  6. Step 6: Final answer
    x = 191,563.84

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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.