Finding the Fourth Proportional to 393,670.42, 543,282.46 and 221,599.49
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Solution
The fourth proportional to 393,670.42, 543,282.46 and 221,599.49 is: 305,817.02
Step by Step Solution
- Step 1: Write the proportion equation
393,670.42 : 543,282.46 = 221,599.49 : x - Step 2: Convert to fraction form
393,670.42/543,282.46 = 221,599.49/x - Step 3: Cross multiply
393,670.42x = 543,282.46 × 221,599.49 - Step 4: Simplify right side
393,670.42x = 120,391,113,345.53 - Step 5: Solve for x
x = 120,391,113,345.53/393,670.42 - Step 6: Final answer
x = 305,817.02
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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.