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Finding the Fourth Proportional to 540,512.39, 810,135.30 and 220,464.52

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Solution

The fourth proportional to 540,512.39, 810,135.30 and 220,464.52 is: 330,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,512.39 : 810,135.30 = 220,464.52 : x
  2. Step 2: Convert to fraction form
    540,512.39/810,135.30 = 220,464.52/x
  3. Step 3: Cross multiply
    540,512.39x = 810,135.30 × 220,464.52
  4. Step 4: Simplify right side
    540,512.39x = 178,606,088,850.96
  5. Step 5: Solve for x
    x = 178,606,088,850.96/540,512.39
  6. Step 6: Final answer
    x = 330,438.47

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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.