Home / 326,824.64-490,265.20-90,167.32

Finding the Fourth Proportional to 326,824.64, 490,265.20 and 90,167.32

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Solution

The fourth proportional to 326,824.64, 490,265.20 and 90,167.32 is: 135,258.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,824.64 : 490,265.20 = 90,167.32 : x
  2. Step 2: Convert to fraction form
    326,824.64/490,265.20 = 90,167.32/x
  3. Step 3: Cross multiply
    326,824.64x = 490,265.20 × 90,167.32
  4. Step 4: Simplify right side
    326,824.64x = 44,205,896,721.94
  5. Step 5: Solve for x
    x = 44,205,896,721.94/326,824.64
  6. Step 6: Final answer
    x = 135,258.76

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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.