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Finding the Fourth Proportional to 606,155.91, 909,200.88 and 185,431.78

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Solution

The fourth proportional to 606,155.91, 909,200.88 and 185,431.78 is: 278,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,155.91 : 909,200.88 = 185,431.78 : x
  2. Step 2: Convert to fraction form
    606,155.91/909,200.88 = 185,431.78/x
  3. Step 3: Cross multiply
    606,155.91x = 909,200.88 × 185,431.78
  4. Step 4: Simplify right side
    606,155.91x = 168,594,737,555.97
  5. Step 5: Solve for x
    x = 168,594,737,555.97/606,155.91
  6. Step 6: Final answer
    x = 278,137.58

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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.