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Finding the Fourth Proportional to 342,201.14, 472,015.16 and 219,499.28

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Solution

The fourth proportional to 342,201.14, 472,015.16 and 219,499.28 is: 302,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,201.14 : 472,015.16 = 219,499.28 : x
  2. Step 2: Convert to fraction form
    342,201.14/472,015.16 = 219,499.28/x
  3. Step 3: Cross multiply
    342,201.14x = 472,015.16 × 219,499.28
  4. Step 4: Simplify right side
    342,201.14x = 103,606,987,769.09
  5. Step 5: Solve for x
    x = 103,606,987,769.09/342,201.14
  6. Step 6: Final answer
    x = 302,766.34

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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.