Home / 379,327.02-523,481.85-209,572.08

Finding the Fourth Proportional to 379,327.02, 523,481.85 and 209,572.08

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Solution

The fourth proportional to 379,327.02, 523,481.85 and 209,572.08 is: 289,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,327.02 : 523,481.85 = 209,572.08 : x
  2. Step 2: Convert to fraction form
    379,327.02/523,481.85 = 209,572.08/x
  3. Step 3: Cross multiply
    379,327.02x = 523,481.85 × 209,572.08
  4. Step 4: Simplify right side
    379,327.02x = 109,707,180,146.75
  5. Step 5: Solve for x
    x = 109,707,180,146.75/379,327.02
  6. Step 6: Final answer
    x = 289,215.31

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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.