Home / 223,513.05-308,446.34-121,538.58

Finding the Fourth Proportional to 223,513.05, 308,446.34 and 121,538.58

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Solution

The fourth proportional to 223,513.05, 308,446.34 and 121,538.58 is: 167,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,513.05 : 308,446.34 = 121,538.58 : x
  2. Step 2: Convert to fraction form
    223,513.05/308,446.34 = 121,538.58/x
  3. Step 3: Cross multiply
    223,513.05x = 308,446.34 × 121,538.58
  4. Step 4: Simplify right side
    223,513.05x = 37,488,129,562.10
  5. Step 5: Solve for x
    x = 37,488,129,562.10/223,513.05
  6. Step 6: Final answer
    x = 167,722.33

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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.