Finding the Fourth Proportional to 316,058.13, 474,087.64 and 129,069.63
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Solution
The fourth proportional to 316,058.13, 474,087.64 and 129,069.63 is: 193,604.63
Step by Step Solution
- Step 1: Write the proportion equation
316,058.13 : 474,087.64 = 129,069.63 : x - Step 2: Convert to fraction form
316,058.13/474,087.64 = 129,069.63/x - Step 3: Cross multiply
316,058.13x = 474,087.64 × 129,069.63 - Step 4: Simplify right side
316,058.13x = 61,190,316,282.37 - Step 5: Solve for x
x = 61,190,316,282.37/316,058.13 - Step 6: Final answer
x = 193,604.63
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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.