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Finding the Fourth Proportional to 250,065.88, 375,137.70 and 83,815

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Solution

The fourth proportional to 250,065.88, 375,137.70 and 83,815 is: 125,735.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,065.88 : 375,137.70 = 83,815 : x
  2. Step 2: Convert to fraction form
    250,065.88/375,137.70 = 83,815/x
  3. Step 3: Cross multiply
    250,065.88x = 375,137.70 × 83,815
  4. Step 4: Simplify right side
    250,065.88x = 31,442,166,325.50
  5. Step 5: Solve for x
    x = 31,442,166,325.50/250,065.88
  6. Step 6: Final answer
    x = 125,735.53

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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.