Home / 324,824.78-487,320.10-135,222.21

Finding the Fourth Proportional to 324,824.78, 487,320.10 and 135,222.21

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Solution

The fourth proportional to 324,824.78, 487,320.10 and 135,222.21 is: 202,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,824.78 : 487,320.10 = 135,222.21 : x
  2. Step 2: Convert to fraction form
    324,824.78/487,320.10 = 135,222.21/x
  3. Step 3: Cross multiply
    324,824.78x = 487,320.10 × 135,222.21
  4. Step 4: Simplify right side
    324,824.78x = 65,896,500,561.37
  5. Step 5: Solve for x
    x = 65,896,500,561.37/324,824.78
  6. Step 6: Final answer
    x = 202,867.84

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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.