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Finding the Fourth Proportional to 272,227.77, 408,424.74 and 139,201.47

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Solution

The fourth proportional to 272,227.77, 408,424.74 and 139,201.47 is: 208,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,227.77 : 408,424.74 = 139,201.47 : x
  2. Step 2: Convert to fraction form
    272,227.77/408,424.74 = 139,201.47/x
  3. Step 3: Cross multiply
    272,227.77x = 408,424.74 × 139,201.47
  4. Step 4: Simplify right side
    272,227.77x = 56,853,324,192.37
  5. Step 5: Solve for x
    x = 56,853,324,192.37/272,227.77
  6. Step 6: Final answer
    x = 208,844.69

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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.