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Finding the Fourth Proportional to 245,397.89, 368,105.03 and 67,890.04

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Solution

The fourth proportional to 245,397.89, 368,105.03 and 67,890.04 is: 101,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,397.89 : 368,105.03 = 67,890.04 : x
  2. Step 2: Convert to fraction form
    245,397.89/368,105.03 = 67,890.04/x
  3. Step 3: Cross multiply
    245,397.89x = 368,105.03 × 67,890.04
  4. Step 4: Simplify right side
    245,397.89x = 24,990,664,460.36
  5. Step 5: Solve for x
    x = 24,990,664,460.36/245,397.89
  6. Step 6: Final answer
    x = 101,837.32

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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.