Home / 379,725.48-524,031.66-209,965.68

Finding the Fourth Proportional to 379,725.48, 524,031.66 and 209,965.68

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Solution

The fourth proportional to 379,725.48, 524,031.66 and 209,965.68 is: 289,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,725.48 : 524,031.66 = 209,965.68 : x
  2. Step 2: Convert to fraction form
    379,725.48/524,031.66 = 209,965.68/x
  3. Step 3: Cross multiply
    379,725.48x = 524,031.66 × 209,965.68
  4. Step 4: Simplify right side
    379,725.48x = 110,028,663,833.43
  5. Step 5: Solve for x
    x = 110,028,663,833.43/379,725.48
  6. Step 6: Final answer
    x = 289,758.44

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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.