Home / 239,242.59-330,162.26-137,286.72

Finding the Fourth Proportional to 239,242.59, 330,162.26 and 137,286.72

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Solution

The fourth proportional to 239,242.59, 330,162.26 and 137,286.72 is: 189,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,242.59 : 330,162.26 = 137,286.72 : x
  2. Step 2: Convert to fraction form
    239,242.59/330,162.26 = 137,286.72/x
  3. Step 3: Cross multiply
    239,242.59x = 330,162.26 × 137,286.72
  4. Step 4: Simplify right side
    239,242.59x = 45,326,893,056.75
  5. Step 5: Solve for x
    x = 45,326,893,056.75/239,242.59
  6. Step 6: Final answer
    x = 189,459.97

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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.