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Finding the Fourth Proportional to 300,604.62, 450,956.11 and 142,779.77

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Solution

The fourth proportional to 300,604.62, 450,956.11 and 142,779.77 is: 214,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,604.62 : 450,956.11 = 142,779.77 : x
  2. Step 2: Convert to fraction form
    300,604.62/450,956.11 = 142,779.77/x
  3. Step 3: Cross multiply
    300,604.62x = 450,956.11 × 142,779.77
  4. Step 4: Simplify right side
    300,604.62x = 64,387,409,665.89
  5. Step 5: Solve for x
    x = 64,387,409,665.89/300,604.62
  6. Step 6: Final answer
    x = 214,193.01

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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.