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Finding the Fourth Proportional to 352,015.07, 528,039 and 102,697.07

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Solution

The fourth proportional to 352,015.07, 528,039 and 102,697.07 is: 154,050.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,015.07 : 528,039 = 102,697.07 : x
  2. Step 2: Convert to fraction form
    352,015.07/528,039 = 102,697.07/x
  3. Step 3: Cross multiply
    352,015.07x = 528,039 × 102,697.07
  4. Step 4: Simplify right side
    352,015.07x = 54,228,055,505.54
  5. Step 5: Solve for x
    x = 54,228,055,505.54/352,015.07
  6. Step 6: Final answer
    x = 154,050.38

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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.