Finding the Fourth Proportional to 304,954.78, 420,840.08 and 168,991.02
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Solution
The fourth proportional to 304,954.78, 420,840.08 and 168,991.02 is: 233,208.98
Step by Step Solution
- Step 1: Write the proportion equation
304,954.78 : 420,840.08 = 168,991.02 : x - Step 2: Convert to fraction form
304,954.78/420,840.08 = 168,991.02/x - Step 3: Cross multiply
304,954.78x = 420,840.08 × 168,991.02 - Step 4: Simplify right side
304,954.78x = 71,118,194,376.08 - Step 5: Solve for x
x = 71,118,194,376.08/304,954.78 - Step 6: Final answer
x = 233,208.98
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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.