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Finding the Fourth Proportional to 636,970.25, 955,603 and 216,246.13

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Solution

The fourth proportional to 636,970.25, 955,603 and 216,246.13 is: 324,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,970.25 : 955,603 = 216,246.13 : x
  2. Step 2: Convert to fraction form
    636,970.25/955,603 = 216,246.13/x
  3. Step 3: Cross multiply
    636,970.25x = 955,603 × 216,246.13
  4. Step 4: Simplify right side
    636,970.25x = 206,645,450,566.39
  5. Step 5: Solve for x
    x = 206,645,450,566.39/636,970.25
  6. Step 6: Final answer
    x = 324,419.31

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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.