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Finding the Fourth Proportional to 247,950.47, 342,164.88 and 140,530.47

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Solution

The fourth proportional to 247,950.47, 342,164.88 and 140,530.47 is: 193,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,950.47 : 342,164.88 = 140,530.47 : x
  2. Step 2: Convert to fraction form
    247,950.47/342,164.88 = 140,530.47/x
  3. Step 3: Cross multiply
    247,950.47x = 342,164.88 × 140,530.47
  4. Step 4: Simplify right side
    247,950.47x = 48,084,591,403.89
  5. Step 5: Solve for x
    x = 48,084,591,403.89/247,950.47
  6. Step 6: Final answer
    x = 193,928.21

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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.