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Finding the Fourth Proportional to 328,710.86, 494,239.98 and 302,729.30

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Solution

The fourth proportional to 328,710.86, 494,239.98 and 302,729.30 is: 455,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,710.86 : 494,239.98 = 302,729.30 : x
  2. Step 2: Convert to fraction form
    328,710.86/494,239.98 = 302,729.30/x
  3. Step 3: Cross multiply
    328,710.86x = 494,239.98 × 302,729.30
  4. Step 4: Simplify right side
    328,710.86x = 149,620,923,177.41
  5. Step 5: Solve for x
    x = 149,620,923,177.41/328,710.86
  6. Step 6: Final answer
    x = 455,174.87

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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.