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Finding the Fourth Proportional to 240,520.50, 360,674.09 and 128,179.77

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Solution

The fourth proportional to 240,520.50, 360,674.09 and 128,179.77 is: 192,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,520.50 : 360,674.09 = 128,179.77 : x
  2. Step 2: Convert to fraction form
    240,520.50/360,674.09 = 128,179.77/x
  3. Step 3: Cross multiply
    240,520.50x = 360,674.09 × 128,179.77
  4. Step 4: Simplify right side
    240,520.50x = 46,231,121,260.26
  5. Step 5: Solve for x
    x = 46,231,121,260.26/240,520.50
  6. Step 6: Final answer
    x = 192,212.81

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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.