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Finding the Fourth Proportional to 328,233.43, 492,433.11 and 91,575.91

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Solution

The fourth proportional to 328,233.43, 492,433.11 and 91,575.91 is: 137,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,233.43 : 492,433.11 = 91,575.91 : x
  2. Step 2: Convert to fraction form
    328,233.43/492,433.11 = 91,575.91/x
  3. Step 3: Cross multiply
    328,233.43x = 492,433.11 × 91,575.91
  4. Step 4: Simplify right side
    328,233.43x = 45,095,010,162.38
  5. Step 5: Solve for x
    x = 45,095,010,162.38/328,233.43
  6. Step 6: Final answer
    x = 137,387.01

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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.