Home / 286,182.10-394,851.28-178,861.16

Finding the Fourth Proportional to 286,182.10, 394,851.28 and 178,861.16

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Solution

The fourth proportional to 286,182.10, 394,851.28 and 178,861.16 is: 246,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,182.10 : 394,851.28 = 178,861.16 : x
  2. Step 2: Convert to fraction form
    286,182.10/394,851.28 = 178,861.16/x
  3. Step 3: Cross multiply
    286,182.10x = 394,851.28 × 178,861.16
  4. Step 4: Simplify right side
    286,182.10x = 70,623,557,968.28
  5. Step 5: Solve for x
    x = 70,623,557,968.28/286,182.10
  6. Step 6: Final answer
    x = 246,778.39

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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.