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Finding the Fourth Proportional to 304,994.96, 457,617.90 and 134,128.73

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Solution

The fourth proportional to 304,994.96, 457,617.90 and 134,128.73 is: 201,248.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,994.96 : 457,617.90 = 134,128.73 : x
  2. Step 2: Convert to fraction form
    304,994.96/457,617.90 = 134,128.73/x
  3. Step 3: Cross multiply
    304,994.96x = 457,617.90 × 134,128.73
  4. Step 4: Simplify right side
    304,994.96x = 61,379,705,464.18
  5. Step 5: Solve for x
    x = 61,379,705,464.18/304,994.96
  6. Step 6: Final answer
    x = 201,248.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.