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Finding the Fourth Proportional to 425,104, 637,693.24 and 109,560.40

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Solution

The fourth proportional to 425,104, 637,693.24 and 109,560.40 is: 164,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,104 : 637,693.24 = 109,560.40 : x
  2. Step 2: Convert to fraction form
    425,104/637,693.24 = 109,560.40/x
  3. Step 3: Cross multiply
    425,104x = 637,693.24 × 109,560.40
  4. Step 4: Simplify right side
    425,104x = 69,865,926,451.70
  5. Step 5: Solve for x
    x = 69,865,926,451.70/425,104
  6. Step 6: Final answer
    x = 164,350.20

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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.