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Finding the Fourth Proportional to 218,511.60, 301,551.68 and 123,021.74

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Solution

The fourth proportional to 218,511.60, 301,551.68 and 123,021.74 is: 169,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,511.60 : 301,551.68 = 123,021.74 : x
  2. Step 2: Convert to fraction form
    218,511.60/301,551.68 = 123,021.74/x
  3. Step 3: Cross multiply
    218,511.60x = 301,551.68 × 123,021.74
  4. Step 4: Simplify right side
    218,511.60x = 37,097,412,373.52
  5. Step 5: Solve for x
    x = 37,097,412,373.52/218,511.60
  6. Step 6: Final answer
    x = 169,773.19

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