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Finding the Fourth Proportional to 245,977.92, 368,967 and 189,900

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Solution

The fourth proportional to 245,977.92, 368,967 and 189,900 is: 284,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,977.92 : 368,967 = 189,900 : x
  2. Step 2: Convert to fraction form
    245,977.92/368,967 = 189,900/x
  3. Step 3: Cross multiply
    245,977.92x = 368,967 × 189,900
  4. Step 4: Simplify right side
    245,977.92x = 70,066,833,300
  5. Step 5: Solve for x
    x = 70,066,833,300/245,977.92
  6. Step 6: Final answer
    x = 284,850.09

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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.