Finding the Fourth Proportional to 236,724.50, 326,679.79 and 129,294.79
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Solution
The fourth proportional to 236,724.50, 326,679.79 and 129,294.79 is: 178,426.80
Step by Step Solution
- Step 1: Write the proportion equation
236,724.50 : 326,679.79 = 129,294.79 : x - Step 2: Convert to fraction form
236,724.50/326,679.79 = 129,294.79/x - Step 3: Cross multiply
236,724.50x = 326,679.79 × 129,294.79 - Step 4: Simplify right side
236,724.50x = 42,237,994,845.29 - Step 5: Solve for x
x = 42,237,994,845.29/236,724.50 - Step 6: Final answer
x = 178,426.80
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1.5x scale
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.