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Finding the Fourth Proportional to 520,236.22, 780,416.86 and 183,207.22

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Solution

The fourth proportional to 520,236.22, 780,416.86 and 183,207.22 is: 274,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,236.22 : 780,416.86 = 183,207.22 : x
  2. Step 2: Convert to fraction form
    520,236.22/780,416.86 = 183,207.22/x
  3. Step 3: Cross multiply
    520,236.22x = 780,416.86 × 183,207.22
  4. Step 4: Simplify right side
    520,236.22x = 142,978,003,361.73
  5. Step 5: Solve for x
    x = 142,978,003,361.73/520,236.22
  6. Step 6: Final answer
    x = 274,832.85

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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.