Finding the Fourth Proportional to 203,219.21, 305,017.95 and 103,454.09
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Solution
The fourth proportional to 203,219.21, 305,017.95 and 103,454.09 is: 155,277.42
Step by Step Solution
- Step 1: Write the proportion equation
203,219.21 : 305,017.95 = 103,454.09 : x - Step 2: Convert to fraction form
203,219.21/305,017.95 = 103,454.09/x - Step 3: Cross multiply
203,219.21x = 305,017.95 × 103,454.09 - Step 4: Simplify right side
203,219.21x = 31,555,353,429.74 - Step 5: Solve for x
x = 31,555,353,429.74/203,219.21 - Step 6: Final answer
x = 155,277.42
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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.