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Finding the Fourth Proportional to 351,999.60, 485,580.63 and 222,720.22

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Solution

The fourth proportional to 351,999.60, 485,580.63 and 222,720.22 is: 307,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,999.60 : 485,580.63 = 222,720.22 : x
  2. Step 2: Convert to fraction form
    351,999.60/485,580.63 = 222,720.22/x
  3. Step 3: Cross multiply
    351,999.60x = 485,580.63 × 222,720.22
  4. Step 4: Simplify right side
    351,999.60x = 108,148,624,741.34
  5. Step 5: Solve for x
    x = 108,148,624,741.34/351,999.60
  6. Step 6: Final answer
    x = 307,240.76

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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.