Home / 205,525.24-307,512.66-121,331.20

Finding the Fourth Proportional to 205,525.24, 307,512.66 and 121,331.20

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Solution

The fourth proportional to 205,525.24, 307,512.66 and 121,331.20 is: 181,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,525.24 : 307,512.66 = 121,331.20 : x
  2. Step 2: Convert to fraction form
    205,525.24/307,512.66 = 121,331.20/x
  3. Step 3: Cross multiply
    205,525.24x = 307,512.66 × 121,331.20
  4. Step 4: Simplify right side
    205,525.24x = 37,310,880,052.99
  5. Step 5: Solve for x
    x = 37,310,880,052.99/205,525.24
  6. Step 6: Final answer
    x = 181,539.16

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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.