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Finding the Fourth Proportional to 247,860.63, 342,048.78 and 140,451.57

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Solution

The fourth proportional to 247,860.63, 342,048.78 and 140,451.57 is: 193,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,860.63 : 342,048.78 = 140,451.57 : x
  2. Step 2: Convert to fraction form
    247,860.63/342,048.78 = 140,451.57/x
  3. Step 3: Cross multiply
    247,860.63x = 342,048.78 × 140,451.57
  4. Step 4: Simplify right side
    247,860.63x = 48,041,288,167.58
  5. Step 5: Solve for x
    x = 48,041,288,167.58/247,860.63
  6. Step 6: Final answer
    x = 193,823.80

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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.