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Finding the Fourth Proportional to 425,149.79, 637,761.41 and 109,604.03

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Solution

The fourth proportional to 425,149.79, 637,761.41 and 109,604.03 is: 164,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,149.79 : 637,761.41 = 109,604.03 : x
  2. Step 2: Convert to fraction form
    425,149.79/637,761.41 = 109,604.03/x
  3. Step 3: Cross multiply
    425,149.79x = 637,761.41 × 109,604.03
  4. Step 4: Simplify right side
    425,149.79x = 69,901,220,166.46
  5. Step 5: Solve for x
    x = 69,901,220,166.46/425,149.79
  6. Step 6: Final answer
    x = 164,415.51

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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.