Home / 285,977.35-394,484.77-178,360.55

Finding the Fourth Proportional to 285,977.35, 394,484.77 and 178,360.55

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Solution

The fourth proportional to 285,977.35, 394,484.77 and 178,360.55 is: 246,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,977.35 : 394,484.77 = 178,360.55 : x
  2. Step 2: Convert to fraction form
    285,977.35/394,484.77 = 178,360.55/x
  3. Step 3: Cross multiply
    285,977.35x = 394,484.77 × 178,360.55
  4. Step 4: Simplify right side
    285,977.35x = 70,360,520,543.82
  5. Step 5: Solve for x
    x = 70,360,520,543.82/285,977.35
  6. Step 6: Final answer
    x = 246,035.29

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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.