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Finding the Fourth Proportional to 636,972.01, 955,605.64 and 216,247.87

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Solution

The fourth proportional to 636,972.01, 955,605.64 and 216,247.87 is: 324,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,972.01 : 955,605.64 = 216,247.87 : x
  2. Step 2: Convert to fraction form
    636,972.01/955,605.64 = 216,247.87/x
  3. Step 3: Cross multiply
    636,972.01x = 955,605.64 × 216,247.87
  4. Step 4: Simplify right side
    636,972.01x = 206,647,683,128.75
  5. Step 5: Solve for x
    x = 206,647,683,128.75/636,972.01
  6. Step 6: Final answer
    x = 324,421.92

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1.5x scale

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.