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Finding the Fourth Proportional to 220,762.29, 330,943.77 and 80,488.11

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Solution

The fourth proportional to 220,762.29, 330,943.77 and 80,488.11 is: 120,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,762.29 : 330,943.77 = 80,488.11 : x
  2. Step 2: Convert to fraction form
    220,762.29/330,943.77 = 80,488.11/x
  3. Step 3: Cross multiply
    220,762.29x = 330,943.77 × 80,488.11
  4. Step 4: Simplify right side
    220,762.29x = 26,637,038,563.57
  5. Step 5: Solve for x
    x = 26,637,038,563.57/220,762.29
  6. Step 6: Final answer
    x = 120,659.37

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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.