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Finding the Fourth Proportional to 304,618.92, 420,360.39 and 168,643.32

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Solution

The fourth proportional to 304,618.92, 420,360.39 and 168,643.32 is: 232,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,618.92 : 420,360.39 = 168,643.32 : x
  2. Step 2: Convert to fraction form
    304,618.92/420,360.39 = 168,643.32/x
  3. Step 3: Cross multiply
    304,618.92x = 420,360.39 × 168,643.32
  4. Step 4: Simplify right side
    304,618.92x = 70,890,971,766.09
  5. Step 5: Solve for x
    x = 70,890,971,766.09/304,618.92
  6. Step 6: Final answer
    x = 232,720.19

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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.