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Finding the Fourth Proportional to 343,745.76, 474,372 and 190,794.56

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Solution

The fourth proportional to 343,745.76, 474,372 and 190,794.56 is: 263,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,745.76 : 474,372 = 190,794.56 : x
  2. Step 2: Convert to fraction form
    343,745.76/474,372 = 190,794.56/x
  3. Step 3: Cross multiply
    343,745.76x = 474,372 × 190,794.56
  4. Step 4: Simplify right side
    343,745.76x = 90,507,597,016.32
  5. Step 5: Solve for x
    x = 90,507,597,016.32/343,745.76
  6. Step 6: Final answer
    x = 263,298.08

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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.