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Finding the Fourth Proportional to 222,577.92, 307,163.52 and 121,980.16

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Solution

The fourth proportional to 222,577.92, 307,163.52 and 121,980.16 is: 168,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,577.92 : 307,163.52 = 121,980.16 : x
  2. Step 2: Convert to fraction form
    222,577.92/307,163.52 = 121,980.16/x
  3. Step 3: Cross multiply
    222,577.92x = 307,163.52 × 121,980.16
  4. Step 4: Simplify right side
    222,577.92x = 37,467,855,315.76
  5. Step 5: Solve for x
    x = 37,467,855,315.76/222,577.92
  6. Step 6: Final answer
    x = 168,335.90

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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.