Home / 326,109.06-488,934.41-143,653.28

Finding the Fourth Proportional to 326,109.06, 488,934.41 and 143,653.28

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Solution

The fourth proportional to 326,109.06, 488,934.41 and 143,653.28 is: 215,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,109.06 : 488,934.41 = 143,653.28 : x
  2. Step 2: Convert to fraction form
    326,109.06/488,934.41 = 143,653.28/x
  3. Step 3: Cross multiply
    326,109.06x = 488,934.41 × 143,653.28
  4. Step 4: Simplify right side
    326,109.06x = 70,237,028,538.43
  5. Step 5: Solve for x
    x = 70,237,028,538.43/326,109.06
  6. Step 6: Final answer
    x = 215,378.95

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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.