Home / 447,145.74-670,576.23-147,570.30

Finding the Fourth Proportional to 447,145.74, 670,576.23 and 147,570.30

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Solution

The fourth proportional to 447,145.74, 670,576.23 and 147,570.30 is: 221,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,145.74 : 670,576.23 = 147,570.30 : x
  2. Step 2: Convert to fraction form
    447,145.74/670,576.23 = 147,570.30/x
  3. Step 3: Cross multiply
    447,145.74x = 670,576.23 × 147,570.30
  4. Step 4: Simplify right side
    447,145.74x = 98,957,135,433.97
  5. Step 5: Solve for x
    x = 98,957,135,433.97/447,145.74
  6. Step 6: Final answer
    x = 221,308.46

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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.