Home / 239,628.31-330,686.69-130,732.65

Finding the Fourth Proportional to 239,628.31, 330,686.69 and 130,732.65

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Solution

The fourth proportional to 239,628.31, 330,686.69 and 130,732.65 is: 180,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,628.31 : 330,686.69 = 130,732.65 : x
  2. Step 2: Convert to fraction form
    239,628.31/330,686.69 = 130,732.65/x
  3. Step 3: Cross multiply
    239,628.31x = 330,686.69 × 130,732.65
  4. Step 4: Simplify right side
    239,628.31x = 43,231,546,649.77
  5. Step 5: Solve for x
    x = 43,231,546,649.77/239,628.31
  6. Step 6: Final answer
    x = 180,410.85

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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.