Home / 258,913.60-388,383.20-134,497.60

Finding the Fourth Proportional to 258,913.60, 388,383.20 and 134,497.60

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Solution

The fourth proportional to 258,913.60, 388,383.20 and 134,497.60 is: 201,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,913.60 : 388,383.20 = 134,497.60 : x
  2. Step 2: Convert to fraction form
    258,913.60/388,383.20 = 134,497.60/x
  3. Step 3: Cross multiply
    258,913.60x = 388,383.20 × 134,497.60
  4. Step 4: Simplify right side
    258,913.60x = 52,236,608,280.32
  5. Step 5: Solve for x
    x = 52,236,608,280.32/258,913.60
  6. Step 6: Final answer
    x = 201,753.05

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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.