Finding the Fourth Proportional to 316,268.20, 474,402.30 and 129,413.80
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Solution
The fourth proportional to 316,268.20, 474,402.30 and 129,413.80 is: 194,120.70
Step by Step Solution
- Step 1: Write the proportion equation
316,268.20 : 474,402.30 = 129,413.80 : x - Step 2: Convert to fraction form
316,268.20/474,402.30 = 129,413.80/x - Step 3: Cross multiply
316,268.20x = 474,402.30 × 129,413.80 - Step 4: Simplify right side
316,268.20x = 61,394,204,371.74 - Step 5: Solve for x
x = 61,394,204,371.74/316,268.20 - Step 6: Final answer
x = 194,120.70
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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.