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Finding the Fourth Proportional to 540,042.80, 810,061.28 and 220,193.43

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Solution

The fourth proportional to 540,042.80, 810,061.28 and 220,193.43 is: 330,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,042.80 : 810,061.28 = 220,193.43 : x
  2. Step 2: Convert to fraction form
    540,042.80/810,061.28 = 220,193.43/x
  3. Step 3: Cross multiply
    540,042.80x = 810,061.28 × 220,193.43
  4. Step 4: Simplify right side
    540,042.80x = 178,370,170,652.42
  5. Step 5: Solve for x
    x = 178,370,170,652.42/540,042.80
  6. Step 6: Final answer
    x = 330,288.96

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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.