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Finding the Fourth Proportional to 202,459.69, 279,382.12 and 121,913.29

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Solution

The fourth proportional to 202,459.69, 279,382.12 and 121,913.29 is: 168,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,459.69 : 279,382.12 = 121,913.29 : x
  2. Step 2: Convert to fraction form
    202,459.69/279,382.12 = 121,913.29/x
  3. Step 3: Cross multiply
    202,459.69x = 279,382.12 × 121,913.29
  4. Step 4: Simplify right side
    202,459.69x = 34,060,393,416.37
  5. Step 5: Solve for x
    x = 34,060,393,416.37/202,459.69
  6. Step 6: Final answer
    x = 168,232.96

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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.