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Finding the Fourth Proportional to 222,741.64, 307,397.46 and 122,139.64

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Solution

The fourth proportional to 222,741.64, 307,397.46 and 122,139.64 is: 168,560.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,741.64 : 307,397.46 = 122,139.64 : x
  2. Step 2: Convert to fraction form
    222,741.64/307,397.46 = 122,139.64/x
  3. Step 3: Cross multiply
    222,741.64x = 307,397.46 × 122,139.64
  4. Step 4: Simplify right side
    222,741.64x = 37,545,415,101.31
  5. Step 5: Solve for x
    x = 37,545,415,101.31/222,741.64
  6. Step 6: Final answer
    x = 168,560.38

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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.