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Finding the Fourth Proportional to 351,499.80, 485,063.70 and 190,353.54

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Solution

The fourth proportional to 351,499.80, 485,063.70 and 190,353.54 is: 262,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,499.80 : 485,063.70 = 190,353.54 : x
  2. Step 2: Convert to fraction form
    351,499.80/485,063.70 = 190,353.54/x
  3. Step 3: Cross multiply
    351,499.80x = 485,063.70 × 190,353.54
  4. Step 4: Simplify right side
    351,499.80x = 92,333,592,420.50
  5. Step 5: Solve for x
    x = 92,333,592,420.50/351,499.80
  6. Step 6: Final answer
    x = 262,684.62

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1.5x scale

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.