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Finding the Fourth Proportional to 380,469.96, 525,047.52 and 219,324.12

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Solution

The fourth proportional to 380,469.96, 525,047.52 and 219,324.12 is: 302,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,469.96 : 525,047.52 = 219,324.12 : x
  2. Step 2: Convert to fraction form
    380,469.96/525,047.52 = 219,324.12/x
  3. Step 3: Cross multiply
    380,469.96x = 525,047.52 × 219,324.12
  4. Step 4: Simplify right side
    380,469.96x = 115,155,585,282.18
  5. Step 5: Solve for x
    x = 115,155,585,282.18/380,469.96
  6. Step 6: Final answer
    x = 302,666.69

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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.