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Finding the Fourth Proportional to 490,391.64, 735,567.48 and 170,616.70

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Solution

The fourth proportional to 490,391.64, 735,567.48 and 170,616.70 is: 255,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,391.64 : 735,567.48 = 170,616.70 : x
  2. Step 2: Convert to fraction form
    490,391.64/735,567.48 = 170,616.70/x
  3. Step 3: Cross multiply
    490,391.64x = 735,567.48 × 170,616.70
  4. Step 4: Simplify right side
    490,391.64x = 125,500,096,064.92
  5. Step 5: Solve for x
    x = 125,500,096,064.92/490,391.64
  6. Step 6: Final answer
    x = 255,918.10

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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.