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Finding the Fourth Proportional to 304,858.53, 420,730.56 and 168,935.04

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Solution

The fourth proportional to 304,858.53, 420,730.56 and 168,935.04 is: 233,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,858.53 : 420,730.56 = 168,935.04 : x
  2. Step 2: Convert to fraction form
    304,858.53/420,730.56 = 168,935.04/x
  3. Step 3: Cross multiply
    304,858.53x = 420,730.56 × 168,935.04
  4. Step 4: Simplify right side
    304,858.53x = 71,076,133,982.82
  5. Step 5: Solve for x
    x = 71,076,133,982.82/304,858.53
  6. Step 6: Final answer
    x = 233,144.65

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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.