Home / 239,299.83-330,229.51-130,405.12

Finding the Fourth Proportional to 239,299.83, 330,229.51 and 130,405.12

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Solution

The fourth proportional to 239,299.83, 330,229.51 and 130,405.12 is: 179,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,299.83 : 330,229.51 = 130,405.12 : x
  2. Step 2: Convert to fraction form
    239,299.83/330,229.51 = 130,405.12/x
  3. Step 3: Cross multiply
    239,299.83x = 330,229.51 × 130,405.12
  4. Step 4: Simplify right side
    239,299.83x = 43,063,617,727.50
  5. Step 5: Solve for x
    x = 43,063,617,727.50/239,299.83
  6. Step 6: Final answer
    x = 179,956.74

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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.