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Finding the Fourth Proportional to 490,226.05, 735,600.30 and 190,716.40

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Solution

The fourth proportional to 490,226.05, 735,600.30 and 190,716.40 is: 286,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,226.05 : 735,600.30 = 190,716.40 : x
  2. Step 2: Convert to fraction form
    490,226.05/735,600.30 = 190,716.40/x
  3. Step 3: Cross multiply
    490,226.05x = 735,600.30 × 190,716.40
  4. Step 4: Simplify right side
    490,226.05x = 140,291,041,054.92
  5. Step 5: Solve for x
    x = 140,291,041,054.92/490,226.05
  6. Step 6: Final answer
    x = 286,176.23

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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.