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Finding the Fourth Proportional to 219,656.16, 303,093.81 and 122,859.54

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Solution

The fourth proportional to 219,656.16, 303,093.81 and 122,859.54 is: 169,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,656.16 : 303,093.81 = 122,859.54 : x
  2. Step 2: Convert to fraction form
    219,656.16/303,093.81 = 122,859.54/x
  3. Step 3: Cross multiply
    219,656.16x = 303,093.81 × 122,859.54
  4. Step 4: Simplify right side
    219,656.16x = 37,237,966,073.45
  5. Step 5: Solve for x
    x = 37,237,966,073.45/219,656.16
  6. Step 6: Final answer
    x = 169,528.44

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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.