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Finding the Fourth Proportional to 240,235.82, 331,523.58 and 138,281.30

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Solution

The fourth proportional to 240,235.82, 331,523.58 and 138,281.30 is: 190,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,235.82 : 331,523.58 = 138,281.30 : x
  2. Step 2: Convert to fraction form
    240,235.82/331,523.58 = 138,281.30/x
  3. Step 3: Cross multiply
    240,235.82x = 331,523.58 × 138,281.30
  4. Step 4: Simplify right side
    240,235.82x = 45,843,511,623.05
  5. Step 5: Solve for x
    x = 45,843,511,623.05/240,235.82
  6. Step 6: Final answer
    x = 190,827.13

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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.