Home / 220,494.96-304,277.58-128,631.85

Finding the Fourth Proportional to 220,494.96, 304,277.58 and 128,631.85

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Solution

The fourth proportional to 220,494.96, 304,277.58 and 128,631.85 is: 177,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,494.96 : 304,277.58 = 128,631.85 : x
  2. Step 2: Convert to fraction form
    220,494.96/304,277.58 = 128,631.85/x
  3. Step 3: Cross multiply
    220,494.96x = 304,277.58 × 128,631.85
  4. Step 4: Simplify right side
    220,494.96x = 39,139,787,268.23
  5. Step 5: Solve for x
    x = 39,139,787,268.23/220,494.96
  6. Step 6: Final answer
    x = 177,508.76

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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.