Home / 380,110.38-524,556.99-210,360.30

Finding the Fourth Proportional to 380,110.38, 524,556.99 and 210,360.30

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Solution

The fourth proportional to 380,110.38, 524,556.99 and 210,360.30 is: 290,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,110.38 : 524,556.99 = 210,360.30 : x
  2. Step 2: Convert to fraction form
    380,110.38/524,556.99 = 210,360.30/x
  3. Step 3: Cross multiply
    380,110.38x = 524,556.99 × 210,360.30
  4. Step 4: Simplify right side
    380,110.38x = 110,345,965,783.50
  5. Step 5: Solve for x
    x = 110,345,965,783.50/380,110.38
  6. Step 6: Final answer
    x = 290,299.80

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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.