Home / 240,660.17-332,145.78-138,666.09

Finding the Fourth Proportional to 240,660.17, 332,145.78 and 138,666.09

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Solution

The fourth proportional to 240,660.17, 332,145.78 and 138,666.09 is: 191,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,660.17 : 332,145.78 = 138,666.09 : x
  2. Step 2: Convert to fraction form
    240,660.17/332,145.78 = 138,666.09/x
  3. Step 3: Cross multiply
    240,660.17x = 332,145.78 × 138,666.09
  4. Step 4: Simplify right side
    240,660.17x = 46,057,356,622.60
  5. Step 5: Solve for x
    x = 46,057,356,622.60/240,660.17
  6. Step 6: Final answer
    x = 191,379.23

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1.5x scale

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.