Home / 239,239.31-330,165.18-131,809.37

Finding the Fourth Proportional to 239,239.31, 330,165.18 and 131,809.37

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Solution

The fourth proportional to 239,239.31, 330,165.18 and 131,809.37 is: 181,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,239.31 : 330,165.18 = 131,809.37 : x
  2. Step 2: Convert to fraction form
    239,239.31/330,165.18 = 131,809.37/x
  3. Step 3: Cross multiply
    239,239.31x = 330,165.18 × 131,809.37
  4. Step 4: Simplify right side
    239,239.31x = 43,518,862,720.91
  5. Step 5: Solve for x
    x = 43,518,862,720.91/239,239.31
  6. Step 6: Final answer
    x = 181,905.15

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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.