Home / 347,815.70-521,723.55-148,142.60

Finding the Fourth Proportional to 347,815.70, 521,723.55 and 148,142.60

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Solution

The fourth proportional to 347,815.70, 521,723.55 and 148,142.60 is: 222,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,815.70 : 521,723.55 = 148,142.60 : x
  2. Step 2: Convert to fraction form
    347,815.70/521,723.55 = 148,142.60/x
  3. Step 3: Cross multiply
    347,815.70x = 521,723.55 × 148,142.60
  4. Step 4: Simplify right side
    347,815.70x = 77,289,483,178.23
  5. Step 5: Solve for x
    x = 77,289,483,178.23/347,815.70
  6. Step 6: Final answer
    x = 222,213.90

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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.