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Finding the Fourth Proportional to 636,999.40, 955,646.70 and 216,275.26

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Solution

The fourth proportional to 636,999.40, 955,646.70 and 216,275.26 is: 324,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,999.40 : 955,646.70 = 216,275.26 : x
  2. Step 2: Convert to fraction form
    636,999.40/955,646.70 = 216,275.26/x
  3. Step 3: Cross multiply
    636,999.40x = 955,646.70 × 216,275.26
  4. Step 4: Simplify right side
    636,999.40x = 206,682,738,510.64
  5. Step 5: Solve for x
    x = 206,682,738,510.64/636,999.40
  6. Step 6: Final answer
    x = 324,463.00

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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.