Home / 330,509.21-456,242.25-223,224.56

Finding the Fourth Proportional to 330,509.21, 456,242.25 and 223,224.56

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Solution

The fourth proportional to 330,509.21, 456,242.25 and 223,224.56 is: 308,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,509.21 : 456,242.25 = 223,224.56 : x
  2. Step 2: Convert to fraction form
    330,509.21/456,242.25 = 223,224.56/x
  3. Step 3: Cross multiply
    330,509.21x = 456,242.25 × 223,224.56
  4. Step 4: Simplify right side
    330,509.21x = 101,844,476,650.27
  5. Step 5: Solve for x
    x = 101,844,476,650.27/330,509.21
  6. Step 6: Final answer
    x = 308,144.14

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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.