Home / 379,118.34-523,181.97-209,351.52

Finding the Fourth Proportional to 379,118.34, 523,181.97 and 209,351.52

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Solution

The fourth proportional to 379,118.34, 523,181.97 and 209,351.52 is: 288,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,118.34 : 523,181.97 = 209,351.52 : x
  2. Step 2: Convert to fraction form
    379,118.34/523,181.97 = 209,351.52/x
  3. Step 3: Cross multiply
    379,118.34x = 523,181.97 × 209,351.52
  4. Step 4: Simplify right side
    379,118.34x = 109,528,940,656.09
  5. Step 5: Solve for x
    x = 109,528,940,656.09/379,118.34
  6. Step 6: Final answer
    x = 288,904.36

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1.5x scale

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.