Home / 220,420.32-304,183.37-123,645.63

Finding the Fourth Proportional to 220,420.32, 304,183.37 and 123,645.63

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Solution

The fourth proportional to 220,420.32, 304,183.37 and 123,645.63 is: 170,632.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,420.32 : 304,183.37 = 123,645.63 : x
  2. Step 2: Convert to fraction form
    220,420.32/304,183.37 = 123,645.63/x
  3. Step 3: Cross multiply
    220,420.32x = 304,183.37 × 123,645.63
  4. Step 4: Simplify right side
    220,420.32x = 37,610,943,587.60
  5. Step 5: Solve for x
    x = 37,610,943,587.60/220,420.32
  6. Step 6: Final answer
    x = 170,632.83

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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.