Home / 250,447.36-345,616.64-137,269.76

Finding the Fourth Proportional to 250,447.36, 345,616.64 and 137,269.76

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Solution

The fourth proportional to 250,447.36, 345,616.64 and 137,269.76 is: 189,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,447.36 : 345,616.64 = 137,269.76 : x
  2. Step 2: Convert to fraction form
    250,447.36/345,616.64 = 137,269.76/x
  3. Step 3: Cross multiply
    250,447.36x = 345,616.64 × 137,269.76
  4. Step 4: Simplify right side
    250,447.36x = 47,442,713,224.81
  5. Step 5: Solve for x
    x = 47,442,713,224.81/250,447.36
  6. Step 6: Final answer
    x = 189,431.88

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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.