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Finding the Fourth Proportional to 222,923.70, 334,479.35 and 138,754.28

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Solution

The fourth proportional to 222,923.70, 334,479.35 and 138,754.28 is: 208,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,923.70 : 334,479.35 = 138,754.28 : x
  2. Step 2: Convert to fraction form
    222,923.70/334,479.35 = 138,754.28/x
  3. Step 3: Cross multiply
    222,923.70x = 334,479.35 × 138,754.28
  4. Step 4: Simplify right side
    222,923.70x = 46,410,442,567.20
  5. Step 5: Solve for x
    x = 46,410,442,567.20/222,923.70
  6. Step 6: Final answer
    x = 208,189.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.