Home / 379,251.24-523,340.10-209,472

Finding the Fourth Proportional to 379,251.24, 523,340.10 and 209,472

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Solution

The fourth proportional to 379,251.24, 523,340.10 and 209,472 is: 289,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,251.24 : 523,340.10 = 209,472 : x
  2. Step 2: Convert to fraction form
    379,251.24/523,340.10 = 209,472/x
  3. Step 3: Cross multiply
    379,251.24x = 523,340.10 × 209,472
  4. Step 4: Simplify right side
    379,251.24x = 109,625,097,427.20
  5. Step 5: Solve for x
    x = 109,625,097,427.20/379,251.24
  6. Step 6: Final answer
    x = 289,056.66

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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.