Home / 272,896.47-409,388.49-115,148.16

Finding the Fourth Proportional to 272,896.47, 409,388.49 and 115,148.16

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Solution

The fourth proportional to 272,896.47, 409,388.49 and 115,148.16 is: 172,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,896.47 : 409,388.49 = 115,148.16 : x
  2. Step 2: Convert to fraction form
    272,896.47/409,388.49 = 115,148.16/x
  3. Step 3: Cross multiply
    272,896.47x = 409,388.49 × 115,148.16
  4. Step 4: Simplify right side
    272,896.47x = 47,140,331,348.68
  5. Step 5: Solve for x
    x = 47,140,331,348.68/272,896.47
  6. Step 6: Final answer
    x = 172,740.71

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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.