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Finding the Fourth Proportional to 352,603.60, 486,471.36 and 225,353.68

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Solution

The fourth proportional to 352,603.60, 486,471.36 and 225,353.68 is: 310,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,603.60 : 486,471.36 = 225,353.68 : x
  2. Step 2: Convert to fraction form
    352,603.60/486,471.36 = 225,353.68/x
  3. Step 3: Cross multiply
    352,603.60x = 486,471.36 × 225,353.68
  4. Step 4: Simplify right side
    352,603.60x = 109,628,111,190.61
  5. Step 5: Solve for x
    x = 109,628,111,190.61/352,603.60
  6. Step 6: Final answer
    x = 310,910.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.