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Finding the Fourth Proportional to 239,160.58, 330,041.56 and 131,730.61

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Solution

The fourth proportional to 239,160.58, 330,041.56 and 131,730.61 is: 181,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,160.58 : 330,041.56 = 131,730.61 : x
  2. Step 2: Convert to fraction form
    239,160.58/330,041.56 = 131,730.61/x
  3. Step 3: Cross multiply
    239,160.58x = 330,041.56 × 131,730.61
  4. Step 4: Simplify right side
    239,160.58x = 43,476,576,024.15
  5. Step 5: Solve for x
    x = 43,476,576,024.15/239,160.58
  6. Step 6: Final answer
    x = 181,788.22

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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.