Home / 208,832.40-288,189.77-122,786.51

Finding the Fourth Proportional to 208,832.40, 288,189.77 and 122,786.51

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Solution

The fourth proportional to 208,832.40, 288,189.77 and 122,786.51 is: 169,446.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,832.40 : 288,189.77 = 122,786.51 : x
  2. Step 2: Convert to fraction form
    208,832.40/288,189.77 = 122,786.51/x
  3. Step 3: Cross multiply
    208,832.40x = 288,189.77 × 122,786.51
  4. Step 4: Simplify right side
    208,832.40x = 35,385,814,021.12
  5. Step 5: Solve for x
    x = 35,385,814,021.12/208,832.40
  6. Step 6: Final answer
    x = 169,446.00

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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.