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Finding the Fourth Proportional to 304,817.76, 420,648.44 and 168,860.50

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Solution

The fourth proportional to 304,817.76, 420,648.44 and 168,860.50 is: 233,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,817.76 : 420,648.44 = 168,860.50 : x
  2. Step 2: Convert to fraction form
    304,817.76/420,648.44 = 168,860.50/x
  3. Step 3: Cross multiply
    304,817.76x = 420,648.44 × 168,860.50
  4. Step 4: Simplify right side
    304,817.76x = 71,030,905,902.62
  5. Step 5: Solve for x
    x = 71,030,905,902.62/304,817.76
  6. Step 6: Final answer
    x = 233,027.45

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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.