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Finding the Fourth Proportional to 328,989.50, 493,501.79 and 104,367.89

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Solution

The fourth proportional to 328,989.50, 493,501.79 and 104,367.89 is: 156,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,989.50 : 493,501.79 = 104,367.89 : x
  2. Step 2: Convert to fraction form
    328,989.50/493,501.79 = 104,367.89/x
  3. Step 3: Cross multiply
    328,989.50x = 493,501.79 × 104,367.89
  4. Step 4: Simplify right side
    328,989.50x = 51,505,741,734.66
  5. Step 5: Solve for x
    x = 51,505,741,734.66/328,989.50
  6. Step 6: Final answer
    x = 156,557.40

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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.