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Finding the Fourth Proportional to 352,043.60, 528,065.40 and 115,410.20

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Solution

The fourth proportional to 352,043.60, 528,065.40 and 115,410.20 is: 173,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,043.60 : 528,065.40 = 115,410.20 : x
  2. Step 2: Convert to fraction form
    352,043.60/528,065.40 = 115,410.20/x
  3. Step 3: Cross multiply
    352,043.60x = 528,065.40 × 115,410.20
  4. Step 4: Simplify right side
    352,043.60x = 60,944,133,427.08
  5. Step 5: Solve for x
    x = 60,944,133,427.08/352,043.60
  6. Step 6: Final answer
    x = 173,115.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.