Home / 400,985.20-601,485.48-131,114.35

Finding the Fourth Proportional to 400,985.20, 601,485.48 and 131,114.35

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Solution

The fourth proportional to 400,985.20, 601,485.48 and 131,114.35 is: 196,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,985.20 : 601,485.48 = 131,114.35 : x
  2. Step 2: Convert to fraction form
    400,985.20/601,485.48 = 131,114.35/x
  3. Step 3: Cross multiply
    400,985.20x = 601,485.48 × 131,114.35
  4. Step 4: Simplify right side
    400,985.20x = 78,863,377,744.64
  5. Step 5: Solve for x
    x = 78,863,377,744.64/400,985.20
  6. Step 6: Final answer
    x = 196,674.04

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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.