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Finding the Fourth Proportional to 342,012.44, 471,975.72 and 191,109.44

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Solution

The fourth proportional to 342,012.44, 471,975.72 and 191,109.44 is: 263,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,012.44 : 471,975.72 = 191,109.44 : x
  2. Step 2: Convert to fraction form
    342,012.44/471,975.72 = 191,109.44/x
  3. Step 3: Cross multiply
    342,012.44x = 471,975.72 × 191,109.44
  4. Step 4: Simplify right side
    342,012.44x = 90,199,015,542.80
  5. Step 5: Solve for x
    x = 90,199,015,542.80/342,012.44
  6. Step 6: Final answer
    x = 263,730.22

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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.