Home / 240,648.15-332,102.25-138,665.78

Finding the Fourth Proportional to 240,648.15, 332,102.25 and 138,665.78

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Solution

The fourth proportional to 240,648.15, 332,102.25 and 138,665.78 is: 191,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,648.15 : 332,102.25 = 138,665.78 : x
  2. Step 2: Convert to fraction form
    240,648.15/332,102.25 = 138,665.78/x
  3. Step 3: Cross multiply
    240,648.15x = 332,102.25 × 138,665.78
  4. Step 4: Simplify right side
    240,648.15x = 46,051,217,536.01
  5. Step 5: Solve for x
    x = 46,051,217,536.01/240,648.15
  6. Step 6: Final answer
    x = 191,363.27

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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.