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Finding the Fourth Proportional to 490,363.20, 735,544.80 and 174,830.40

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Solution

The fourth proportional to 490,363.20, 735,544.80 and 174,830.40 is: 262,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,363.20 : 735,544.80 = 174,830.40 : x
  2. Step 2: Convert to fraction form
    490,363.20/735,544.80 = 174,830.40/x
  3. Step 3: Cross multiply
    490,363.20x = 735,544.80 × 174,830.40
  4. Step 4: Simplify right side
    490,363.20x = 128,595,591,601.92
  5. Step 5: Solve for x
    x = 128,595,591,601.92/490,363.20
  6. Step 6: Final answer
    x = 262,245.60

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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.