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Finding the Fourth Proportional to 373,150.67, 514,912.35 and 218,138.20

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Solution

The fourth proportional to 373,150.67, 514,912.35 and 218,138.20 is: 301,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,150.67 : 514,912.35 = 218,138.20 : x
  2. Step 2: Convert to fraction form
    373,150.67/514,912.35 = 218,138.20/x
  3. Step 3: Cross multiply
    373,150.67x = 514,912.35 × 218,138.20
  4. Step 4: Simplify right side
    373,150.67x = 112,322,052,096.08
  5. Step 5: Solve for x
    x = 112,322,052,096.08/373,150.67
  6. Step 6: Final answer
    x = 301,009.92

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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.