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Finding the Fourth Proportional to 252,683.71, 378,753.40 and 134,235.79

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Solution

The fourth proportional to 252,683.71, 378,753.40 and 134,235.79 is: 201,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,683.71 : 378,753.40 = 134,235.79 : x
  2. Step 2: Convert to fraction form
    252,683.71/378,753.40 = 134,235.79/x
  3. Step 3: Cross multiply
    252,683.71x = 378,753.40 × 134,235.79
  4. Step 4: Simplify right side
    252,683.71x = 50,842,261,864.19
  5. Step 5: Solve for x
    x = 50,842,261,864.19/252,683.71
  6. Step 6: Final answer
    x = 201,209.10

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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.