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Finding the Fourth Proportional to 388,101.60, 535,353.21 and 252,226.06

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Solution

The fourth proportional to 388,101.60, 535,353.21 and 252,226.06 is: 347,924.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,101.60 : 535,353.21 = 252,226.06 : x
  2. Step 2: Convert to fraction form
    388,101.60/535,353.21 = 252,226.06/x
  3. Step 3: Cross multiply
    388,101.60x = 535,353.21 × 252,226.06
  4. Step 4: Simplify right side
    388,101.60x = 135,030,029,528.27
  5. Step 5: Solve for x
    x = 135,030,029,528.27/388,101.60
  6. Step 6: Final answer
    x = 347,924.43

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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.