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Finding the Fourth Proportional to 328,662.83, 493,048.78 and 115,375.46

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Solution

The fourth proportional to 328,662.83, 493,048.78 and 115,375.46 is: 173,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,662.83 : 493,048.78 = 115,375.46 : x
  2. Step 2: Convert to fraction form
    328,662.83/493,048.78 = 115,375.46/x
  3. Step 3: Cross multiply
    328,662.83x = 493,048.78 × 115,375.46
  4. Step 4: Simplify right side
    328,662.83x = 56,885,727,041.26
  5. Step 5: Solve for x
    x = 56,885,727,041.26/328,662.83
  6. Step 6: Final answer
    x = 173,082.32

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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.