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Finding the Fourth Proportional to 220,816.40, 331,242.60 and 94,457.60

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Solution

The fourth proportional to 220,816.40, 331,242.60 and 94,457.60 is: 141,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,816.40 : 331,242.60 = 94,457.60 : x
  2. Step 2: Convert to fraction form
    220,816.40/331,242.60 = 94,457.60/x
  3. Step 3: Cross multiply
    220,816.40x = 331,242.60 × 94,457.60
  4. Step 4: Simplify right side
    220,816.40x = 31,288,381,013.76
  5. Step 5: Solve for x
    x = 31,288,381,013.76/220,816.40
  6. Step 6: Final answer
    x = 141,694.10

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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.