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Finding the Fourth Proportional to 275,007.38, 412,628.71 and 115,120.68

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Solution

The fourth proportional to 275,007.38, 412,628.71 and 115,120.68 is: 172,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,007.38 : 412,628.71 = 115,120.68 : x
  2. Step 2: Convert to fraction form
    275,007.38/412,628.71 = 115,120.68/x
  3. Step 3: Cross multiply
    275,007.38x = 412,628.71 × 115,120.68
  4. Step 4: Simplify right side
    275,007.38x = 47,502,095,043.98
  5. Step 5: Solve for x
    x = 47,502,095,043.98/275,007.38
  6. Step 6: Final answer
    x = 172,730.26

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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.