Home / 379,108.77-523,163.10-209,339.25

Finding the Fourth Proportional to 379,108.77, 523,163.10 and 209,339.25

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Solution

The fourth proportional to 379,108.77, 523,163.10 and 209,339.25 is: 288,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,108.77 : 523,163.10 = 209,339.25 : x
  2. Step 2: Convert to fraction form
    379,108.77/523,163.10 = 209,339.25/x
  3. Step 3: Cross multiply
    379,108.77x = 523,163.10 × 209,339.25
  4. Step 4: Simplify right side
    379,108.77x = 109,518,570,981.68
  5. Step 5: Solve for x
    x = 109,518,570,981.68/379,108.77
  6. Step 6: Final answer
    x = 288,884.30

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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.