Home / 379,300.16-523,414.88-209,501.44

Finding the Fourth Proportional to 379,300.16, 523,414.88 and 209,501.44

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Solution

The fourth proportional to 379,300.16, 523,414.88 and 209,501.44 is: 289,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,300.16 : 523,414.88 = 209,501.44 : x
  2. Step 2: Convert to fraction form
    379,300.16/523,414.88 = 209,501.44/x
  3. Step 3: Cross multiply
    379,300.16x = 523,414.88 × 209,501.44
  4. Step 4: Simplify right side
    379,300.16x = 109,656,171,077.43
  5. Step 5: Solve for x
    x = 109,656,171,077.43/379,300.16
  6. Step 6: Final answer
    x = 289,101.30

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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.