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Finding the Fourth Proportional to 325,328.96, 488,018.40 and 112,009.28

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Solution

The fourth proportional to 325,328.96, 488,018.40 and 112,009.28 is: 168,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,328.96 : 488,018.40 = 112,009.28 : x
  2. Step 2: Convert to fraction form
    325,328.96/488,018.40 = 112,009.28/x
  3. Step 3: Cross multiply
    325,328.96x = 488,018.40 × 112,009.28
  4. Step 4: Simplify right side
    325,328.96x = 54,662,589,610.75
  5. Step 5: Solve for x
    x = 54,662,589,610.75/325,328.96
  6. Step 6: Final answer
    x = 168,022.51

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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.