Home / 347,022.20-520,727.70-147,308.60

Finding the Fourth Proportional to 347,022.20, 520,727.70 and 147,308.60

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Solution

The fourth proportional to 347,022.20, 520,727.70 and 147,308.60 is: 221,045.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,022.20 : 520,727.70 = 147,308.60 : x
  2. Step 2: Convert to fraction form
    347,022.20/520,727.70 = 147,308.60/x
  3. Step 3: Cross multiply
    347,022.20x = 520,727.70 × 147,308.60
  4. Step 4: Simplify right side
    347,022.20x = 76,707,668,468.22
  5. Step 5: Solve for x
    x = 76,707,668,468.22/347,022.20
  6. Step 6: Final answer
    x = 221,045.42

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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.