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Finding the Fourth Proportional to 383,522.42, 529,238.17 and 220,141.18

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Solution

The fourth proportional to 383,522.42, 529,238.17 and 220,141.18 is: 303,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,522.42 : 529,238.17 = 220,141.18 : x
  2. Step 2: Convert to fraction form
    383,522.42/529,238.17 = 220,141.18/x
  3. Step 3: Cross multiply
    383,522.42x = 529,238.17 × 220,141.18
  4. Step 4: Simplify right side
    383,522.42x = 116,507,115,244.84
  5. Step 5: Solve for x
    x = 116,507,115,244.84/383,522.42
  6. Step 6: Final answer
    x = 303,781.76

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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.