Home / 328,986.09-493,405.38-151,322.49

Finding the Fourth Proportional to 328,986.09, 493,405.38 and 151,322.49

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Solution

The fourth proportional to 328,986.09, 493,405.38 and 151,322.49 is: 226,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,986.09 : 493,405.38 = 151,322.49 : x
  2. Step 2: Convert to fraction form
    328,986.09/493,405.38 = 151,322.49/x
  3. Step 3: Cross multiply
    328,986.09x = 493,405.38 × 151,322.49
  4. Step 4: Simplify right side
    328,986.09x = 74,663,330,681.00
  5. Step 5: Solve for x
    x = 74,663,330,681.00/328,986.09
  6. Step 6: Final answer
    x = 226,949.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.