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Finding the Fourth Proportional to 270,424.43, 405,015.57 and 135,073.05

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Solution

The fourth proportional to 270,424.43, 405,015.57 and 135,073.05 is: 202,299.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,424.43 : 405,015.57 = 135,073.05 : x
  2. Step 2: Convert to fraction form
    270,424.43/405,015.57 = 135,073.05/x
  3. Step 3: Cross multiply
    270,424.43x = 405,015.57 × 135,073.05
  4. Step 4: Simplify right side
    270,424.43x = 54,706,688,337.39
  5. Step 5: Solve for x
    x = 54,706,688,337.39/270,424.43
  6. Step 6: Final answer
    x = 202,299.36

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1.5x scale

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.