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Finding the Fourth Proportional to 245,398.69, 368,106.25 and 67,890.84

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Solution

The fourth proportional to 245,398.69, 368,106.25 and 67,890.84 is: 101,838.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,398.69 : 368,106.25 = 67,890.84 : x
  2. Step 2: Convert to fraction form
    245,398.69/368,106.25 = 67,890.84/x
  3. Step 3: Cross multiply
    245,398.69x = 368,106.25 × 67,890.84
  4. Step 4: Simplify right side
    245,398.69x = 24,991,042,521.75
  5. Step 5: Solve for x
    x = 24,991,042,521.75/245,398.69
  6. Step 6: Final answer
    x = 101,838.53

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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.