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Finding the Fourth Proportional to 149,245.80, 223,809.30 and 49,378.20

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Solution

The fourth proportional to 149,245.80, 223,809.30 and 49,378.20 is: 74,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,245.80 : 223,809.30 = 49,378.20 : x
  2. Step 2: Convert to fraction form
    149,245.80/223,809.30 = 49,378.20/x
  3. Step 3: Cross multiply
    149,245.80x = 223,809.30 × 49,378.20
  4. Step 4: Simplify right side
    149,245.80x = 11,051,300,377.26
  5. Step 5: Solve for x
    x = 11,051,300,377.26/149,245.80
  6. Step 6: Final answer
    x = 74,047.65

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1.5x scale

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.