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Finding the Fourth Proportional to 247,920.51, 342,128.70 and 134,743.26

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Solution

The fourth proportional to 247,920.51, 342,128.70 and 134,743.26 is: 185,944.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,920.51 : 342,128.70 = 134,743.26 : x
  2. Step 2: Convert to fraction form
    247,920.51/342,128.70 = 134,743.26/x
  3. Step 3: Cross multiply
    247,920.51x = 342,128.70 × 134,743.26
  4. Step 4: Simplify right side
    247,920.51x = 46,099,536,377.56
  5. Step 5: Solve for x
    x = 46,099,536,377.56/247,920.51
  6. Step 6: Final answer
    x = 185,944.83

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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.