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Finding the Fourth Proportional to 259,262.79, 388,861.38 and 101,601.96

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Solution

The fourth proportional to 259,262.79, 388,861.38 and 101,601.96 is: 152,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,262.79 : 388,861.38 = 101,601.96 : x
  2. Step 2: Convert to fraction form
    259,262.79/388,861.38 = 101,601.96/x
  3. Step 3: Cross multiply
    259,262.79x = 388,861.38 × 101,601.96
  4. Step 4: Simplify right side
    259,262.79x = 39,509,078,376.30
  5. Step 5: Solve for x
    x = 39,509,078,376.30/259,262.79
  6. Step 6: Final answer
    x = 152,390.08

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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.