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Finding the Fourth Proportional to 328,991.47, 493,504.74 and 104,369.86

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Solution

The fourth proportional to 328,991.47, 493,504.74 and 104,369.86 is: 156,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,991.47 : 493,504.74 = 104,369.86 : x
  2. Step 2: Convert to fraction form
    328,991.47/493,504.74 = 104,369.86/x
  3. Step 3: Cross multiply
    328,991.47x = 493,504.74 × 104,369.86
  4. Step 4: Simplify right side
    328,991.47x = 51,507,021,240.02
  5. Step 5: Solve for x
    x = 51,507,021,240.02/328,991.47
  6. Step 6: Final answer
    x = 156,560.36

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1.5x scale

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.