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Finding the Fourth Proportional to 291,230.50, 401,819.52 and 170,401.46

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Solution

The fourth proportional to 291,230.50, 401,819.52 and 170,401.46 is: 235,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,230.50 : 401,819.52 = 170,401.46 : x
  2. Step 2: Convert to fraction form
    291,230.50/401,819.52 = 170,401.46/x
  3. Step 3: Cross multiply
    291,230.50x = 401,819.52 × 170,401.46
  4. Step 4: Simplify right side
    291,230.50x = 68,470,632,864.50
  5. Step 5: Solve for x
    x = 68,470,632,864.50/291,230.50
  6. Step 6: Final answer
    x = 235,108.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.