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Finding the Fourth Proportional to 352,018.10, 528,027.15 and 127,378.10

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Solution

The fourth proportional to 352,018.10, 528,027.15 and 127,378.10 is: 191,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,018.10 : 528,027.15 = 127,378.10 : x
  2. Step 2: Convert to fraction form
    352,018.10/528,027.15 = 127,378.10/x
  3. Step 3: Cross multiply
    352,018.10x = 528,027.15 × 127,378.10
  4. Step 4: Simplify right side
    352,018.10x = 67,259,095,115.42
  5. Step 5: Solve for x
    x = 67,259,095,115.42/352,018.10
  6. Step 6: Final answer
    x = 191,067.15

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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.