Home / 285,786.48-427,838.85-190,781.04

Finding the Fourth Proportional to 285,786.48, 427,838.85 and 190,781.04

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Solution

The fourth proportional to 285,786.48, 427,838.85 and 190,781.04 is: 285,610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,786.48 : 427,838.85 = 190,781.04 : x
  2. Step 2: Convert to fraction form
    285,786.48/427,838.85 = 190,781.04/x
  3. Step 3: Cross multiply
    285,786.48x = 427,838.85 × 190,781.04
  4. Step 4: Simplify right side
    285,786.48x = 81,623,540,755.40
  5. Step 5: Solve for x
    x = 81,623,540,755.40/285,786.48
  6. Step 6: Final answer
    x = 285,610.22

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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.