Home / 236,233.40-354,123.30-78,380.60

Finding the Fourth Proportional to 236,233.40, 354,123.30 and 78,380.60

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Solution

The fourth proportional to 236,233.40, 354,123.30 and 78,380.60 is: 117,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,233.40 : 354,123.30 = 78,380.60 : x
  2. Step 2: Convert to fraction form
    236,233.40/354,123.30 = 78,380.60/x
  3. Step 3: Cross multiply
    236,233.40x = 354,123.30 × 78,380.60
  4. Step 4: Simplify right side
    236,233.40x = 27,756,396,727.98
  5. Step 5: Solve for x
    x = 27,756,396,727.98/236,233.40
  6. Step 6: Final answer
    x = 117,495.65

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1.5x scale

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.