Home / 447,003.20-670,525.80-147,509.96

Finding the Fourth Proportional to 447,003.20, 670,525.80 and 147,509.96

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Solution

The fourth proportional to 447,003.20, 670,525.80 and 147,509.96 is: 221,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,003.20 : 670,525.80 = 147,509.96 : x
  2. Step 2: Convert to fraction form
    447,003.20/670,525.80 = 147,509.96/x
  3. Step 3: Cross multiply
    447,003.20x = 670,525.80 × 147,509.96
  4. Step 4: Simplify right side
    447,003.20x = 98,909,233,936.97
  5. Step 5: Solve for x
    x = 98,909,233,936.97/447,003.20
  6. Step 6: Final answer
    x = 221,271.87

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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.