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Finding the Fourth Proportional to 387,657.77, 534,889.32 and 226,481.68

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Solution

The fourth proportional to 387,657.77, 534,889.32 and 226,481.68 is: 312,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,657.77 : 534,889.32 = 226,481.68 : x
  2. Step 2: Convert to fraction form
    387,657.77/534,889.32 = 226,481.68/x
  3. Step 3: Cross multiply
    387,657.77x = 534,889.32 × 226,481.68
  4. Step 4: Simplify right side
    387,657.77x = 121,142,631,626.96
  5. Step 5: Solve for x
    x = 121,142,631,626.96/387,657.77
  6. Step 6: Final answer
    x = 312,498.91

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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.