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Finding the Fourth Proportional to 328,427.52, 492,185.60 and 187,888.64

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Solution

The fourth proportional to 328,427.52, 492,185.60 and 187,888.64 is: 281,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,427.52 : 492,185.60 = 187,888.64 : x
  2. Step 2: Convert to fraction form
    328,427.52/492,185.60 = 187,888.64/x
  3. Step 3: Cross multiply
    328,427.52x = 492,185.60 × 187,888.64
  4. Step 4: Simplify right side
    328,427.52x = 92,476,083,011.58
  5. Step 5: Solve for x
    x = 92,476,083,011.58/328,427.52
  6. Step 6: Final answer
    x = 281,572.27

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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.