Home / 330,509.72-456,242.94-223,225.06

Finding the Fourth Proportional to 330,509.72, 456,242.94 and 223,225.06

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Solution

The fourth proportional to 330,509.72, 456,242.94 and 223,225.06 is: 308,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,509.72 : 456,242.94 = 223,225.06 : x
  2. Step 2: Convert to fraction form
    330,509.72/456,242.94 = 223,225.06/x
  3. Step 3: Cross multiply
    330,509.72x = 456,242.94 × 223,225.06
  4. Step 4: Simplify right side
    330,509.72x = 101,844,857,389.29
  5. Step 5: Solve for x
    x = 101,844,857,389.29/330,509.72
  6. Step 6: Final answer
    x = 308,144.82

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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.