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Finding the Fourth Proportional to 300,613.40, 414,842.30 and 171,592.78

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Solution

The fourth proportional to 300,613.40, 414,842.30 and 171,592.78 is: 236,795.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,613.40 : 414,842.30 = 171,592.78 : x
  2. Step 2: Convert to fraction form
    300,613.40/414,842.30 = 171,592.78/x
  3. Step 3: Cross multiply
    300,613.40x = 414,842.30 × 171,592.78
  4. Step 4: Simplify right side
    300,613.40x = 71,183,941,623.52
  5. Step 5: Solve for x
    x = 71,183,941,623.52/300,613.40
  6. Step 6: Final answer
    x = 236,795.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.