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Finding the Fourth Proportional to 207,855.15, 311,549.44 and 102,747.93

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Solution

The fourth proportional to 207,855.15, 311,549.44 and 102,747.93 is: 154,006.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,855.15 : 311,549.44 = 102,747.93 : x
  2. Step 2: Convert to fraction form
    207,855.15/311,549.44 = 102,747.93/x
  3. Step 3: Cross multiply
    207,855.15x = 311,549.44 × 102,747.93
  4. Step 4: Simplify right side
    207,855.15x = 32,011,059,538.92
  5. Step 5: Solve for x
    x = 32,011,059,538.92/207,855.15
  6. Step 6: Final answer
    x = 154,006.57

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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.