Finding the Fourth Proportional to 228,926.49, 343,342.97 and 86,722.74
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Solution
The fourth proportional to 228,926.49, 343,342.97 and 86,722.74 is: 130,066.39
Step by Step Solution
- Step 1: Write the proportion equation
228,926.49 : 343,342.97 = 86,722.74 : x - Step 2: Convert to fraction form
228,926.49/343,342.97 = 86,722.74/x - Step 3: Cross multiply
228,926.49x = 343,342.97 × 86,722.74 - Step 4: Simplify right side
228,926.49x = 29,775,643,118.14 - Step 5: Solve for x
x = 29,775,643,118.14/228,926.49 - Step 6: Final answer
x = 130,066.39
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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.