Home / 220,017.30-303,598.68-123,207.66

Finding the Fourth Proportional to 220,017.30, 303,598.68 and 123,207.66

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Solution

The fourth proportional to 220,017.30, 303,598.68 and 123,207.66 is: 170,012.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,017.30 : 303,598.68 = 123,207.66 : x
  2. Step 2: Convert to fraction form
    220,017.30/303,598.68 = 123,207.66/x
  3. Step 3: Cross multiply
    220,017.30x = 303,598.68 × 123,207.66
  4. Step 4: Simplify right side
    220,017.30x = 37,405,682,941.89
  5. Step 5: Solve for x
    x = 37,405,682,941.89/220,017.30
  6. Step 6: Final answer
    x = 170,012.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.