Finding the Fourth Proportional to 249,295.94, 343,990.43 and 140,394.55
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Solution
The fourth proportional to 249,295.94, 343,990.43 and 140,394.55 is: 193,723.09
Step by Step Solution
- Step 1: Write the proportion equation
249,295.94 : 343,990.43 = 140,394.55 : x - Step 2: Convert to fraction form
249,295.94/343,990.43 = 140,394.55/x - Step 3: Cross multiply
249,295.94x = 343,990.43 × 140,394.55 - Step 4: Simplify right side
249,295.94x = 48,294,379,202.23 - Step 5: Solve for x
x = 48,294,379,202.23/249,295.94 - Step 6: Final answer
x = 193,723.09
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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.