Home / 272,509.26-408,778.46-85,535.34

Finding the Fourth Proportional to 272,509.26, 408,778.46 and 85,535.34

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Solution

The fourth proportional to 272,509.26, 408,778.46 and 85,535.34 is: 128,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,509.26 : 408,778.46 = 85,535.34 : x
  2. Step 2: Convert to fraction form
    272,509.26/408,778.46 = 85,535.34/x
  3. Step 3: Cross multiply
    272,509.26x = 408,778.46 × 85,535.34
  4. Step 4: Simplify right side
    272,509.26x = 34,965,004,560.78
  5. Step 5: Solve for x
    x = 34,965,004,560.78/272,509.26
  6. Step 6: Final answer
    x = 128,307.58

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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.