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Finding the Fourth Proportional to 446,987.80, 670,287.30 and 147,352.60

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Solution

The fourth proportional to 446,987.80, 670,287.30 and 147,352.60 is: 220,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,987.80 : 670,287.30 = 147,352.60 : x
  2. Step 2: Convert to fraction form
    446,987.80/670,287.30 = 147,352.60/x
  3. Step 3: Cross multiply
    446,987.80x = 670,287.30 × 147,352.60
  4. Step 4: Simplify right side
    446,987.80x = 98,768,576,401.98
  5. Step 5: Solve for x
    x = 98,768,576,401.98/446,987.80
  6. Step 6: Final answer
    x = 220,964.81

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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.