Home / 217,519.07-300,305.01-137,015.60

Finding the Fourth Proportional to 217,519.07, 300,305.01 and 137,015.60

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Solution

The fourth proportional to 217,519.07, 300,305.01 and 137,015.60 is: 189,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,519.07 : 300,305.01 = 137,015.60 : x
  2. Step 2: Convert to fraction form
    217,519.07/300,305.01 = 137,015.60/x
  3. Step 3: Cross multiply
    217,519.07x = 300,305.01 × 137,015.60
  4. Step 4: Simplify right side
    217,519.07x = 41,146,468,941.55
  5. Step 5: Solve for x
    x = 41,146,468,941.55/217,519.07
  6. Step 6: Final answer
    x = 189,162.59

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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.