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Finding the Fourth Proportional to 537,903.60, 806,077.80 and 238,138.80

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Solution

The fourth proportional to 537,903.60, 806,077.80 and 238,138.80 is: 356,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,903.60 : 806,077.80 = 238,138.80 : x
  2. Step 2: Convert to fraction form
    537,903.60/806,077.80 = 238,138.80/x
  3. Step 3: Cross multiply
    537,903.60x = 806,077.80 × 238,138.80
  4. Step 4: Simplify right side
    537,903.60x = 191,958,399,998.64
  5. Step 5: Solve for x
    x = 191,958,399,998.64/537,903.60
  6. Step 6: Final answer
    x = 356,863.94

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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.