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Finding the Fourth Proportional to 351,500.50, 485,069.97 and 190,355.50

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Solution

The fourth proportional to 351,500.50, 485,069.97 and 190,355.50 is: 262,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,500.50 : 485,069.97 = 190,355.50 : x
  2. Step 2: Convert to fraction form
    351,500.50/485,069.97 = 190,355.50/x
  3. Step 3: Cross multiply
    351,500.50x = 485,069.97 × 190,355.50
  4. Step 4: Simplify right side
    351,500.50x = 92,335,736,674.34
  5. Step 5: Solve for x
    x = 92,335,736,674.34/351,500.50
  6. Step 6: Final answer
    x = 262,690.20

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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.