Finding the Fourth Proportional to 342,930.18, 473,367.87 and 279,157.26
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Solution
The fourth proportional to 342,930.18, 473,367.87 and 279,157.26 is: 385,338.14
Step by Step Solution
- Step 1: Write the proportion equation
342,930.18 : 473,367.87 = 279,157.26 : x - Step 2: Convert to fraction form
342,930.18/473,367.87 = 279,157.26/x - Step 3: Cross multiply
342,930.18x = 473,367.87 × 279,157.26 - Step 4: Simplify right side
342,930.18x = 132,144,077,561.24 - Step 5: Solve for x
x = 132,144,077,561.24/342,930.18 - Step 6: Final answer
x = 385,338.14
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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.