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Finding the Fourth Proportional to 304,589, 420,322.29 and 168,628.88

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Solution

The fourth proportional to 304,589, 420,322.29 and 168,628.88 is: 232,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,589 : 420,322.29 = 168,628.88 : x
  2. Step 2: Convert to fraction form
    304,589/420,322.29 = 168,628.88/x
  3. Step 3: Cross multiply
    304,589x = 420,322.29 × 168,628.88
  4. Step 4: Simplify right side
    304,589x = 70,878,477,001.74
  5. Step 5: Solve for x
    x = 70,878,477,001.74/304,589
  6. Step 6: Final answer
    x = 232,702.02

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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.