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Finding the Fourth Proportional to 425,392.14, 638,100.58 and 159,101.84

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Solution

The fourth proportional to 425,392.14, 638,100.58 and 159,101.84 is: 238,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,392.14 : 638,100.58 = 159,101.84 : x
  2. Step 2: Convert to fraction form
    425,392.14/638,100.58 = 159,101.84/x
  3. Step 3: Cross multiply
    425,392.14x = 638,100.58 × 159,101.84
  4. Step 4: Simplify right side
    425,392.14x = 101,522,976,383.07
  5. Step 5: Solve for x
    x = 101,522,976,383.07/425,392.14
  6. Step 6: Final answer
    x = 238,657.39

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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.