Home / 286,452.20-395,139.56-178,835.40

Finding the Fourth Proportional to 286,452.20, 395,139.56 and 178,835.40

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Solution

The fourth proportional to 286,452.20, 395,139.56 and 178,835.40 is: 246,690.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,452.20 : 395,139.56 = 178,835.40 : x
  2. Step 2: Convert to fraction form
    286,452.20/395,139.56 = 178,835.40/x
  3. Step 3: Cross multiply
    286,452.20x = 395,139.56 × 178,835.40
  4. Step 4: Simplify right side
    286,452.20x = 70,664,940,374.25
  5. Step 5: Solve for x
    x = 70,664,940,374.25/286,452.20
  6. Step 6: Final answer
    x = 246,690.16

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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.