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Finding the Fourth Proportional to 373,753, 515,793.36 and 212,622.76

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Solution

The fourth proportional to 373,753, 515,793.36 and 212,622.76 is: 293,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,753 : 515,793.36 = 212,622.76 : x
  2. Step 2: Convert to fraction form
    373,753/515,793.36 = 212,622.76/x
  3. Step 3: Cross multiply
    373,753x = 515,793.36 × 212,622.76
  4. Step 4: Simplify right side
    373,753x = 109,669,407,792.87
  5. Step 5: Solve for x
    x = 109,669,407,792.87/373,753
  6. Step 6: Final answer
    x = 293,427.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.