Home / 380,388.02-524,816.42-219,221.03

Finding the Fourth Proportional to 380,388.02, 524,816.42 and 219,221.03

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Solution

The fourth proportional to 380,388.02, 524,816.42 and 219,221.03 is: 302,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,388.02 : 524,816.42 = 219,221.03 : x
  2. Step 2: Convert to fraction form
    380,388.02/524,816.42 = 219,221.03/x
  3. Step 3: Cross multiply
    380,388.02x = 524,816.42 × 219,221.03
  4. Step 4: Simplify right side
    380,388.02x = 115,050,796,369.25
  5. Step 5: Solve for x
    x = 115,050,796,369.25/380,388.02
  6. Step 6: Final answer
    x = 302,456.42

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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.