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Finding the Fourth Proportional to 636,601.49, 954,699.68 and 210,057.81

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Solution

The fourth proportional to 636,601.49, 954,699.68 and 210,057.81 is: 315,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,601.49 : 954,699.68 = 210,057.81 : x
  2. Step 2: Convert to fraction form
    636,601.49/954,699.68 = 210,057.81/x
  3. Step 3: Cross multiply
    636,601.49x = 954,699.68 × 210,057.81
  4. Step 4: Simplify right side
    636,601.49x = 200,542,118,164.71
  5. Step 5: Solve for x
    x = 200,542,118,164.71/636,601.49
  6. Step 6: Final answer
    x = 315,019.87

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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.