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Finding the Fourth Proportional to 245,404.62, 368,096.22 and 76,921.10

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Solution

The fourth proportional to 245,404.62, 368,096.22 and 76,921.10 is: 115,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,404.62 : 368,096.22 = 76,921.10 : x
  2. Step 2: Convert to fraction form
    245,404.62/368,096.22 = 76,921.10/x
  3. Step 3: Cross multiply
    245,404.62x = 368,096.22 × 76,921.10
  4. Step 4: Simplify right side
    245,404.62x = 28,314,366,148.24
  5. Step 5: Solve for x
    x = 28,314,366,148.24/245,404.62
  6. Step 6: Final answer
    x = 115,378.29

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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.