Home / 239,205.04-330,080.24-137,238.90

Finding the Fourth Proportional to 239,205.04, 330,080.24 and 137,238.90

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Solution

The fourth proportional to 239,205.04, 330,080.24 and 137,238.90 is: 189,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,205.04 : 330,080.24 = 137,238.90 : x
  2. Step 2: Convert to fraction form
    239,205.04/330,080.24 = 137,238.90/x
  3. Step 3: Cross multiply
    239,205.04x = 330,080.24 × 137,238.90
  4. Step 4: Simplify right side
    239,205.04x = 45,299,848,363.14
  5. Step 5: Solve for x
    x = 45,299,848,363.14/239,205.04
  6. Step 6: Final answer
    x = 189,376.65

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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.