Home / 280,736.44-387,434.70-158,259.04

Finding the Fourth Proportional to 280,736.44, 387,434.70 and 158,259.04

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Solution

The fourth proportional to 280,736.44, 387,434.70 and 158,259.04 is: 218,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,736.44 : 387,434.70 = 158,259.04 : x
  2. Step 2: Convert to fraction form
    280,736.44/387,434.70 = 158,259.04/x
  3. Step 3: Cross multiply
    280,736.44x = 387,434.70 × 158,259.04
  4. Step 4: Simplify right side
    280,736.44x = 61,315,043,684.69
  5. Step 5: Solve for x
    x = 61,315,043,684.69/280,736.44
  6. Step 6: Final answer
    x = 218,407.86

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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.