Home / 379,433.24-569,172.14-142,777.97

Finding the Fourth Proportional to 379,433.24, 569,172.14 and 142,777.97

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Solution

The fourth proportional to 379,433.24, 569,172.14 and 142,777.97 is: 214,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,433.24 : 569,172.14 = 142,777.97 : x
  2. Step 2: Convert to fraction form
    379,433.24/569,172.14 = 142,777.97/x
  3. Step 3: Cross multiply
    379,433.24x = 569,172.14 × 142,777.97
  4. Step 4: Simplify right side
    379,433.24x = 81,265,242,015.87
  5. Step 5: Solve for x
    x = 81,265,242,015.87/379,433.24
  6. Step 6: Final answer
    x = 214,175.34

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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.