Home / 480,147.27-720,205.41-143,190.72

Finding the Fourth Proportional to 480,147.27, 720,205.41 and 143,190.72

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Solution

The fourth proportional to 480,147.27, 720,205.41 and 143,190.72 is: 214,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,147.27 : 720,205.41 = 143,190.72 : x
  2. Step 2: Convert to fraction form
    480,147.27/720,205.41 = 143,190.72/x
  3. Step 3: Cross multiply
    480,147.27x = 720,205.41 × 143,190.72
  4. Step 4: Simplify right side
    480,147.27x = 103,126,731,205.80
  5. Step 5: Solve for x
    x = 103,126,731,205.80/480,147.27
  6. Step 6: Final answer
    x = 214,781.46

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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.