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Finding the Fourth Proportional to 240,119.30, 359,928.66 and 90,256.34

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Solution

The fourth proportional to 240,119.30, 359,928.66 and 90,256.34 is: 135,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,119.30 : 359,928.66 = 90,256.34 : x
  2. Step 2: Convert to fraction form
    240,119.30/359,928.66 = 90,256.34/x
  3. Step 3: Cross multiply
    240,119.30x = 359,928.66 × 90,256.34
  4. Step 4: Simplify right side
    240,119.30x = 32,485,843,512.70
  5. Step 5: Solve for x
    x = 32,485,843,512.70/240,119.30
  6. Step 6: Final answer
    x = 135,290.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.