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Finding the Fourth Proportional to 400,809.58, 601,243.56 and 134,567.86

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Solution

The fourth proportional to 400,809.58, 601,243.56 and 134,567.86 is: 201,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,809.58 : 601,243.56 = 134,567.86 : x
  2. Step 2: Convert to fraction form
    400,809.58/601,243.56 = 134,567.86/x
  3. Step 3: Cross multiply
    400,809.58x = 601,243.56 × 134,567.86
  4. Step 4: Simplify right side
    400,809.58x = 80,908,059,207.98
  5. Step 5: Solve for x
    x = 80,908,059,207.98/400,809.58
  6. Step 6: Final answer
    x = 201,861.59

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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.