Home / 380,372.20-524,784.42-219,222.12

Finding the Fourth Proportional to 380,372.20, 524,784.42 and 219,222.12

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Solution

The fourth proportional to 380,372.20, 524,784.42 and 219,222.12 is: 302,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,372.20 : 524,784.42 = 219,222.12 : x
  2. Step 2: Convert to fraction form
    380,372.20/524,784.42 = 219,222.12/x
  3. Step 3: Cross multiply
    380,372.20x = 524,784.42 × 219,222.12
  4. Step 4: Simplify right side
    380,372.20x = 115,044,353,095.37
  5. Step 5: Solve for x
    x = 115,044,353,095.37/380,372.20
  6. Step 6: Final answer
    x = 302,452.05

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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.