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Finding the Fourth Proportional to 425,499.50, 638,358.63 and 159,263.84

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Solution

The fourth proportional to 425,499.50, 638,358.63 and 159,263.84 is: 238,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,499.50 : 638,358.63 = 159,263.84 : x
  2. Step 2: Convert to fraction form
    425,499.50/638,358.63 = 159,263.84/x
  3. Step 3: Cross multiply
    425,499.50x = 638,358.63 × 159,263.84
  4. Step 4: Simplify right side
    425,499.50x = 101,667,446,710.94
  5. Step 5: Solve for x
    x = 101,667,446,710.94/425,499.50
  6. Step 6: Final answer
    x = 238,936.70

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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.