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Finding the Fourth Proportional to 328,575.36, 453,433.68 and 177,672

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Solution

The fourth proportional to 328,575.36, 453,433.68 and 177,672 is: 245,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,575.36 : 453,433.68 = 177,672 : x
  2. Step 2: Convert to fraction form
    328,575.36/453,433.68 = 177,672/x
  3. Step 3: Cross multiply
    328,575.36x = 453,433.68 × 177,672
  4. Step 4: Simplify right side
    328,575.36x = 80,562,468,792.96
  5. Step 5: Solve for x
    x = 80,562,468,792.96/328,575.36
  6. Step 6: Final answer
    x = 245,187.19

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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.