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Finding the Fourth Proportional to 222,745.20, 334,117.80 and 220,412.40

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Solution

The fourth proportional to 222,745.20, 334,117.80 and 220,412.40 is: 330,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,745.20 : 334,117.80 = 220,412.40 : x
  2. Step 2: Convert to fraction form
    222,745.20/334,117.80 = 220,412.40/x
  3. Step 3: Cross multiply
    222,745.20x = 334,117.80 × 220,412.40
  4. Step 4: Simplify right side
    222,745.20x = 73,643,706,180.72
  5. Step 5: Solve for x
    x = 73,643,706,180.72/222,745.20
  6. Step 6: Final answer
    x = 330,618.60

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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.