Home / 289,849.20-434,773.80-148,131.60

Finding the Fourth Proportional to 289,849.20, 434,773.80 and 148,131.60

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Solution

The fourth proportional to 289,849.20, 434,773.80 and 148,131.60 is: 222,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,849.20 : 434,773.80 = 148,131.60 : x
  2. Step 2: Convert to fraction form
    289,849.20/434,773.80 = 148,131.60/x
  3. Step 3: Cross multiply
    289,849.20x = 434,773.80 × 148,131.60
  4. Step 4: Simplify right side
    289,849.20x = 64,403,738,632.08
  5. Step 5: Solve for x
    x = 64,403,738,632.08/289,849.20
  6. Step 6: Final answer
    x = 222,197.40

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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.