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Finding the Fourth Proportional to 237,398.76, 327,618 and 129,976.56

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Solution

The fourth proportional to 237,398.76, 327,618 and 129,976.56 is: 179,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,398.76 : 327,618 = 129,976.56 : x
  2. Step 2: Convert to fraction form
    237,398.76/327,618 = 129,976.56/x
  3. Step 3: Cross multiply
    237,398.76x = 327,618 × 129,976.56
  4. Step 4: Simplify right side
    237,398.76x = 42,582,660,634.08
  5. Step 5: Solve for x
    x = 42,582,660,634.08/237,398.76
  6. Step 6: Final answer
    x = 179,371.87

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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.