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Finding the Fourth Proportional to 636,564.30, 954,964.52 and 210,129.83

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Solution

The fourth proportional to 636,564.30, 954,964.52 and 210,129.83 is: 315,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,564.30 : 954,964.52 = 210,129.83 : x
  2. Step 2: Convert to fraction form
    636,564.30/954,964.52 = 210,129.83/x
  3. Step 3: Cross multiply
    636,564.30x = 954,964.52 × 210,129.83
  4. Step 4: Simplify right side
    636,564.30x = 200,666,530,787.26
  5. Step 5: Solve for x
    x = 200,666,530,787.26/636,564.30
  6. Step 6: Final answer
    x = 315,233.72

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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.