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Finding the Fourth Proportional to 239,296.63, 330,231.57 and 131,870.50

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Solution

The fourth proportional to 239,296.63, 330,231.57 and 131,870.50 is: 181,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,296.63 : 330,231.57 = 131,870.50 : x
  2. Step 2: Convert to fraction form
    239,296.63/330,231.57 = 131,870.50/x
  3. Step 3: Cross multiply
    239,296.63x = 330,231.57 × 131,870.50
  4. Step 4: Simplify right side
    239,296.63x = 43,547,802,251.69
  5. Step 5: Solve for x
    x = 43,547,802,251.69/239,296.63
  6. Step 6: Final answer
    x = 181,982.51

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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.