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Finding the Fourth Proportional to 180,031.91, 270,080.67 and 61,715.21

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Solution

The fourth proportional to 180,031.91, 270,080.67 and 61,715.21 is: 92,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,031.91 : 270,080.67 = 61,715.21 : x
  2. Step 2: Convert to fraction form
    180,031.91/270,080.67 = 61,715.21/x
  3. Step 3: Cross multiply
    180,031.91x = 270,080.67 × 61,715.21
  4. Step 4: Simplify right side
    180,031.91x = 16,668,083,915.59
  5. Step 5: Solve for x
    x = 16,668,083,915.59/180,031.91
  6. Step 6: Final answer
    x = 92,584.06

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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.