Home / 641,140.92-961,842.60-220,362.12

Finding the Fourth Proportional to 641,140.92, 961,842.60 and 220,362.12

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Solution

The fourth proportional to 641,140.92, 961,842.60 and 220,362.12 is: 330,588.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,140.92 : 961,842.60 = 220,362.12 : x
  2. Step 2: Convert to fraction form
    641,140.92/961,842.60 = 220,362.12/x
  3. Step 3: Cross multiply
    641,140.92x = 961,842.60 × 220,362.12
  4. Step 4: Simplify right side
    641,140.92x = 211,953,674,442.31
  5. Step 5: Solve for x
    x = 211,953,674,442.31/641,140.92
  6. Step 6: Final answer
    x = 330,588.28

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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.