Home / 412,178.20-618,153.09-145,903.66

Finding the Fourth Proportional to 412,178.20, 618,153.09 and 145,903.66

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Solution

The fourth proportional to 412,178.20, 618,153.09 and 145,903.66 is: 218,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,178.20 : 618,153.09 = 145,903.66 : x
  2. Step 2: Convert to fraction form
    412,178.20/618,153.09 = 145,903.66/x
  3. Step 3: Cross multiply
    412,178.20x = 618,153.09 × 145,903.66
  4. Step 4: Simplify right side
    412,178.20x = 90,190,798,271.31
  5. Step 5: Solve for x
    x = 90,190,798,271.31/412,178.20
  6. Step 6: Final answer
    x = 218,815.06

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