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Finding the Fourth Proportional to 646,299.93, 969,892.70 and 225,575.81

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Solution

The fourth proportional to 646,299.93, 969,892.70 and 225,575.81 is: 338,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,299.93 : 969,892.70 = 225,575.81 : x
  2. Step 2: Convert to fraction form
    646,299.93/969,892.70 = 225,575.81/x
  3. Step 3: Cross multiply
    646,299.93x = 969,892.70 × 225,575.81
  4. Step 4: Simplify right side
    646,299.93x = 218,784,331,415.59
  5. Step 5: Solve for x
    x = 218,784,331,415.59/646,299.93
  6. Step 6: Final answer
    x = 338,518.27

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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.