Home / 646,142.27-969,213.13-172,815.32

Finding the Fourth Proportional to 646,142.27, 969,213.13 and 172,815.32

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Solution

The fourth proportional to 646,142.27, 969,213.13 and 172,815.32 is: 259,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,142.27 : 969,213.13 = 172,815.32 : x
  2. Step 2: Convert to fraction form
    646,142.27/969,213.13 = 172,815.32/x
  3. Step 3: Cross multiply
    646,142.27x = 969,213.13 × 172,815.32
  4. Step 4: Simplify right side
    646,142.27x = 167,494,879,200.15
  5. Step 5: Solve for x
    x = 167,494,879,200.15/646,142.27
  6. Step 6: Final answer
    x = 259,222.91

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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.