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Finding the Fourth Proportional to 352,542.80, 529,116.60 and 142,331.60

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Solution

The fourth proportional to 352,542.80, 529,116.60 and 142,331.60 is: 213,619.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,542.80 : 529,116.60 = 142,331.60 : x
  2. Step 2: Convert to fraction form
    352,542.80/529,116.60 = 142,331.60/x
  3. Step 3: Cross multiply
    352,542.80x = 529,116.60 × 142,331.60
  4. Step 4: Simplify right side
    352,542.80x = 75,310,012,264.56
  5. Step 5: Solve for x
    x = 75,310,012,264.56/352,542.80
  6. Step 6: Final answer
    x = 213,619.49

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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.