Home / 236,144.70-354,217.05-78,378.30

Finding the Fourth Proportional to 236,144.70, 354,217.05 and 78,378.30

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Solution

The fourth proportional to 236,144.70, 354,217.05 and 78,378.30 is: 117,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,144.70 : 354,217.05 = 78,378.30 : x
  2. Step 2: Convert to fraction form
    236,144.70/354,217.05 = 78,378.30/x
  3. Step 3: Cross multiply
    236,144.70x = 354,217.05 × 78,378.30
  4. Step 4: Simplify right side
    236,144.70x = 27,762,930,210.02
  5. Step 5: Solve for x
    x = 27,762,930,210.02/236,144.70
  6. Step 6: Final answer
    x = 117,567.45

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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.