Home / 328,520.72-453,357.96-177,617.36

Finding the Fourth Proportional to 328,520.72, 453,357.96 and 177,617.36

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Solution

The fourth proportional to 328,520.72, 453,357.96 and 177,617.36 is: 245,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,520.72 : 453,357.96 = 177,617.36 : x
  2. Step 2: Convert to fraction form
    328,520.72/453,357.96 = 177,617.36/x
  3. Step 3: Cross multiply
    328,520.72x = 453,357.96 × 177,617.36
  4. Step 4: Simplify right side
    328,520.72x = 80,524,243,990.19
  5. Step 5: Solve for x
    x = 80,524,243,990.19/328,520.72
  6. Step 6: Final answer
    x = 245,111.61

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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.