Home / 327,542.81-491,314.45-90,885.72

Finding the Fourth Proportional to 327,542.81, 491,314.45 and 90,885.72

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Solution

The fourth proportional to 327,542.81, 491,314.45 and 90,885.72 is: 136,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,542.81 : 491,314.45 = 90,885.72 : x
  2. Step 2: Convert to fraction form
    327,542.81/491,314.45 = 90,885.72/x
  3. Step 3: Cross multiply
    327,542.81x = 491,314.45 × 90,885.72
  4. Step 4: Simplify right side
    327,542.81x = 44,653,467,307.44
  5. Step 5: Solve for x
    x = 44,653,467,307.44/327,542.81
  6. Step 6: Final answer
    x = 136,328.64

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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.