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Finding the Fourth Proportional to 247,014.34, 340,879.86 and 133,837.09

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Solution

The fourth proportional to 247,014.34, 340,879.86 and 133,837.09 is: 184,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,014.34 : 340,879.86 = 133,837.09 : x
  2. Step 2: Convert to fraction form
    247,014.34/340,879.86 = 133,837.09/x
  3. Step 3: Cross multiply
    247,014.34x = 340,879.86 × 133,837.09
  4. Step 4: Simplify right side
    247,014.34x = 45,622,367,649.81
  5. Step 5: Solve for x
    x = 45,622,367,649.81/247,014.34
  6. Step 6: Final answer
    x = 184,695.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.