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Finding the Fourth Proportional to 328,615.38, 492,941.67 and 160,279.73

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Solution

The fourth proportional to 328,615.38, 492,941.67 and 160,279.73 is: 240,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,615.38 : 492,941.67 = 160,279.73 : x
  2. Step 2: Convert to fraction form
    328,615.38/492,941.67 = 160,279.73/x
  3. Step 3: Cross multiply
    328,615.38x = 492,941.67 × 160,279.73
  4. Step 4: Simplify right side
    328,615.38x = 79,008,556,556.12
  5. Step 5: Solve for x
    x = 79,008,556,556.12/328,615.38
  6. Step 6: Final answer
    x = 240,428.66

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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.