Home / 286,125.66-394,835.04-178,689.29

Finding the Fourth Proportional to 286,125.66, 394,835.04 and 178,689.29

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Solution

The fourth proportional to 286,125.66, 394,835.04 and 178,689.29 is: 246,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,125.66 : 394,835.04 = 178,689.29 : x
  2. Step 2: Convert to fraction form
    286,125.66/394,835.04 = 178,689.29/x
  3. Step 3: Cross multiply
    286,125.66x = 394,835.04 × 178,689.29
  4. Step 4: Simplify right side
    286,125.66x = 70,552,790,990.55
  5. Step 5: Solve for x
    x = 70,552,790,990.55/286,125.66
  6. Step 6: Final answer
    x = 246,579.74

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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.