Home / 379,541.22-523,794.05-209,771.70

Finding the Fourth Proportional to 379,541.22, 523,794.05 and 209,771.70

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Solution

The fourth proportional to 379,541.22, 523,794.05 and 209,771.70 is: 289,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,541.22 : 523,794.05 = 209,771.70 : x
  2. Step 2: Convert to fraction form
    379,541.22/523,794.05 = 209,771.70/x
  3. Step 3: Cross multiply
    379,541.22x = 523,794.05 × 209,771.70
  4. Step 4: Simplify right side
    379,541.22x = 109,877,168,318.39
  5. Step 5: Solve for x
    x = 109,877,168,318.39/379,541.22
  6. Step 6: Final answer
    x = 289,499.96

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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.