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Finding the Fourth Proportional to 425,533.40, 637,757.40 and 225,949.40

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Solution

The fourth proportional to 425,533.40, 637,757.40 and 225,949.40 is: 338,635.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,533.40 : 637,757.40 = 225,949.40 : x
  2. Step 2: Convert to fraction form
    425,533.40/637,757.40 = 225,949.40/x
  3. Step 3: Cross multiply
    425,533.40x = 637,757.40 × 225,949.40
  4. Step 4: Simplify right side
    425,533.40x = 144,100,901,875.56
  5. Step 5: Solve for x
    x = 144,100,901,875.56/425,533.40
  6. Step 6: Final answer
    x = 338,635.94

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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.