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Finding the Fourth Proportional to 486,022.60, 729,252.60 and 170,705.80

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Solution

The fourth proportional to 486,022.60, 729,252.60 and 170,705.80 is: 256,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,022.60 : 729,252.60 = 170,705.80 : x
  2. Step 2: Convert to fraction form
    486,022.60/729,252.60 = 170,705.80/x
  3. Step 3: Cross multiply
    486,022.60x = 729,252.60 × 170,705.80
  4. Step 4: Simplify right side
    486,022.60x = 124,487,648,485.08
  5. Step 5: Solve for x
    x = 124,487,648,485.08/486,022.60
  6. Step 6: Final answer
    x = 256,135.51

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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.