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Finding the Fourth Proportional to 207,316.65, 310,974.99 and 67,089.45

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Solution

The fourth proportional to 207,316.65, 310,974.99 and 67,089.45 is: 100,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,316.65 : 310,974.99 = 67,089.45 : x
  2. Step 2: Convert to fraction form
    207,316.65/310,974.99 = 67,089.45/x
  3. Step 3: Cross multiply
    207,316.65x = 310,974.99 × 67,089.45
  4. Step 4: Simplify right side
    207,316.65x = 20,863,141,042.86
  5. Step 5: Solve for x
    x = 20,863,141,042.86/207,316.65
  6. Step 6: Final answer
    x = 100,634.18

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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.