Home / 326,110.06-488,935.90-143,654.28

Finding the Fourth Proportional to 326,110.06, 488,935.90 and 143,654.28

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Solution

The fourth proportional to 326,110.06, 488,935.90 and 143,654.28 is: 215,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,110.06 : 488,935.90 = 143,654.28 : x
  2. Step 2: Convert to fraction form
    326,110.06/488,935.90 = 143,654.28/x
  3. Step 3: Cross multiply
    326,110.06x = 488,935.90 × 143,654.28
  4. Step 4: Simplify right side
    326,110.06x = 70,237,734,680.65
  5. Step 5: Solve for x
    x = 70,237,734,680.65/326,110.06
  6. Step 6: Final answer
    x = 215,380.46

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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.