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Finding the Fourth Proportional to 240,853.78, 332,310.35 and 138,871.22

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Solution

The fourth proportional to 240,853.78, 332,310.35 and 138,871.22 is: 191,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,853.78 : 332,310.35 = 138,871.22 : x
  2. Step 2: Convert to fraction form
    240,853.78/332,310.35 = 138,871.22/x
  3. Step 3: Cross multiply
    240,853.78x = 332,310.35 × 138,871.22
  4. Step 4: Simplify right side
    240,853.78x = 46,148,343,028.77
  5. Step 5: Solve for x
    x = 46,148,343,028.77/240,853.78
  6. Step 6: Final answer
    x = 191,603.15

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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.