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Finding the Fourth Proportional to 636,315.33, 954,508.23 and 209,833.95

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Solution

The fourth proportional to 636,315.33, 954,508.23 and 209,833.95 is: 314,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,315.33 : 954,508.23 = 209,833.95 : x
  2. Step 2: Convert to fraction form
    636,315.33/954,508.23 = 209,833.95/x
  3. Step 3: Cross multiply
    636,315.33x = 954,508.23 × 209,833.95
  4. Step 4: Simplify right side
    636,315.33x = 200,288,232,208.41
  5. Step 5: Solve for x
    x = 200,288,232,208.41/636,315.33
  6. Step 6: Final answer
    x = 314,762.54

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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.