Home / 328,979.36-493,395.22-151,315.68

Finding the Fourth Proportional to 328,979.36, 493,395.22 and 151,315.68

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Solution

The fourth proportional to 328,979.36, 493,395.22 and 151,315.68 is: 226,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,979.36 : 493,395.22 = 151,315.68 : x
  2. Step 2: Convert to fraction form
    328,979.36/493,395.22 = 151,315.68/x
  3. Step 3: Cross multiply
    328,979.36x = 493,395.22 × 151,315.68
  4. Step 4: Simplify right side
    328,979.36x = 74,658,433,223.05
  5. Step 5: Solve for x
    x = 74,658,433,223.05/328,979.36
  6. Step 6: Final answer
    x = 226,939.57

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1.5x scale

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.