Home / 326,821.14-490,259.95-90,163.82

Finding the Fourth Proportional to 326,821.14, 490,259.95 and 90,163.82

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Solution

The fourth proportional to 326,821.14, 490,259.95 and 90,163.82 is: 135,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,821.14 : 490,259.95 = 90,163.82 : x
  2. Step 2: Convert to fraction form
    326,821.14/490,259.95 = 90,163.82/x
  3. Step 3: Cross multiply
    326,821.14x = 490,259.95 × 90,163.82
  4. Step 4: Simplify right side
    326,821.14x = 44,203,710,275.95
  5. Step 5: Solve for x
    x = 44,203,710,275.95/326,821.14
  6. Step 6: Final answer
    x = 135,253.52

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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.