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Finding the Fourth Proportional to 275,019.47, 412,425.52 and 115,106.49

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Solution

The fourth proportional to 275,019.47, 412,425.52 and 115,106.49 is: 172,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,019.47 : 412,425.52 = 115,106.49 : x
  2. Step 2: Convert to fraction form
    275,019.47/412,425.52 = 115,106.49/x
  3. Step 3: Cross multiply
    275,019.47x = 412,425.52 × 115,106.49
  4. Step 4: Simplify right side
    275,019.47x = 47,472,852,903.40
  5. Step 5: Solve for x
    x = 47,472,852,903.40/275,019.47
  6. Step 6: Final answer
    x = 172,616.33

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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.