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Finding the Fourth Proportional to 422,730.68, 634,370.90 and 183,078.59

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Solution

The fourth proportional to 422,730.68, 634,370.90 and 183,078.59 is: 274,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,730.68 : 634,370.90 = 183,078.59 : x
  2. Step 2: Convert to fraction form
    422,730.68/634,370.90 = 183,078.59/x
  3. Step 3: Cross multiply
    422,730.68x = 634,370.90 × 183,078.59
  4. Step 4: Simplify right side
    422,730.68x = 116,139,725,821.78
  5. Step 5: Solve for x
    x = 116,139,725,821.78/422,730.68
  6. Step 6: Final answer
    x = 274,736.93

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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.