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Finding the Fourth Proportional to 400,017.45, 600,100.89 and 133,779.36

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Solution

The fourth proportional to 400,017.45, 600,100.89 and 133,779.36 is: 200,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,017.45 : 600,100.89 = 133,779.36 : x
  2. Step 2: Convert to fraction form
    400,017.45/600,100.89 = 133,779.36/x
  3. Step 3: Cross multiply
    400,017.45x = 600,100.89 × 133,779.36
  4. Step 4: Simplify right side
    400,017.45x = 80,281,112,999.63
  5. Step 5: Solve for x
    x = 80,281,112,999.63/400,017.45
  6. Step 6: Final answer
    x = 200,694.03

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1.5x scale

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.