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Finding the Fourth Proportional to 247,893.92, 342,051.36 and 140,441.76

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Solution

The fourth proportional to 247,893.92, 342,051.36 and 140,441.76 is: 193,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,893.92 : 342,051.36 = 140,441.76 : x
  2. Step 2: Convert to fraction form
    247,893.92/342,051.36 = 140,441.76/x
  3. Step 3: Cross multiply
    247,893.92x = 342,051.36 × 140,441.76
  4. Step 4: Simplify right side
    247,893.92x = 48,038,295,008.79
  5. Step 5: Solve for x
    x = 48,038,295,008.79/247,893.92
  6. Step 6: Final answer
    x = 193,785.69

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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.