Home / 379,446.03-523,635.71-209,680.16

Finding the Fourth Proportional to 379,446.03, 523,635.71 and 209,680.16

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Solution

The fourth proportional to 379,446.03, 523,635.71 and 209,680.16 is: 289,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,446.03 : 523,635.71 = 209,680.16 : x
  2. Step 2: Convert to fraction form
    379,446.03/523,635.71 = 209,680.16/x
  3. Step 3: Cross multiply
    379,446.03x = 523,635.71 × 209,680.16
  4. Step 4: Simplify right side
    379,446.03x = 109,796,015,787.93
  5. Step 5: Solve for x
    x = 109,796,015,787.93/379,446.03
  6. Step 6: Final answer
    x = 289,358.72

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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.