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Finding the Fourth Proportional to 315,573.44, 435,473.55 and 179,640.47

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Solution

The fourth proportional to 315,573.44, 435,473.55 and 179,640.47 is: 247,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,573.44 : 435,473.55 = 179,640.47 : x
  2. Step 2: Convert to fraction form
    315,573.44/435,473.55 = 179,640.47/x
  3. Step 3: Cross multiply
    315,573.44x = 435,473.55 × 179,640.47
  4. Step 4: Simplify right side
    315,573.44x = 78,228,673,194.57
  5. Step 5: Solve for x
    x = 78,228,673,194.57/315,573.44
  6. Step 6: Final answer
    x = 247,893.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.