Home / 387,261.09-580,050.43-187,161.83

Finding the Fourth Proportional to 387,261.09, 580,050.43 and 187,161.83

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Solution

The fourth proportional to 387,261.09, 580,050.43 and 187,161.83 is: 280,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,261.09 : 580,050.43 = 187,161.83 : x
  2. Step 2: Convert to fraction form
    387,261.09/580,050.43 = 187,161.83/x
  3. Step 3: Cross multiply
    387,261.09x = 580,050.43 × 187,161.83
  4. Step 4: Simplify right side
    387,261.09x = 108,563,299,971.09
  5. Step 5: Solve for x
    x = 108,563,299,971.09/387,261.09
  6. Step 6: Final answer
    x = 280,336.19

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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.