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Finding the Fourth Proportional to 551,024.50, 826,536.78 and 218,600.50

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Solution

The fourth proportional to 551,024.50, 826,536.78 and 218,600.50 is: 327,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,024.50 : 826,536.78 = 218,600.50 : x
  2. Step 2: Convert to fraction form
    551,024.50/826,536.78 = 218,600.50/x
  3. Step 3: Cross multiply
    551,024.50x = 826,536.78 × 218,600.50
  4. Step 4: Simplify right side
    551,024.50x = 180,681,353,376.39
  5. Step 5: Solve for x
    x = 180,681,353,376.39/551,024.50
  6. Step 6: Final answer
    x = 327,900.76

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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.