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Finding the Fourth Proportional to 250,275.94, 375,335.47 and 81,757.87

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Solution

The fourth proportional to 250,275.94, 375,335.47 and 81,757.87 is: 122,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,275.94 : 375,335.47 = 81,757.87 : x
  2. Step 2: Convert to fraction form
    250,275.94/375,335.47 = 81,757.87/x
  3. Step 3: Cross multiply
    250,275.94x = 375,335.47 × 81,757.87
  4. Step 4: Simplify right side
    250,275.94x = 30,686,628,562.65
  5. Step 5: Solve for x
    x = 30,686,628,562.65/250,275.94
  6. Step 6: Final answer
    x = 122,611.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.