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Finding the Fourth Proportional to 328,646, 453,531.48 and 177,743

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Solution

The fourth proportional to 328,646, 453,531.48 and 177,743 is: 245,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,646 : 453,531.48 = 177,743 : x
  2. Step 2: Convert to fraction form
    328,646/453,531.48 = 177,743/x
  3. Step 3: Cross multiply
    328,646x = 453,531.48 × 177,743
  4. Step 4: Simplify right side
    328,646x = 80,612,045,849.64
  5. Step 5: Solve for x
    x = 80,612,045,849.64/328,646
  6. Step 6: Final answer
    x = 245,285.34

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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.