Finding the Fourth Proportional to 235,671.23, 325,226.99 and 128,241.29
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Solution
The fourth proportional to 235,671.23, 325,226.99 and 128,241.29 is: 176,973.36
Step by Step Solution
- Step 1: Write the proportion equation
235,671.23 : 325,226.99 = 128,241.29 : x - Step 2: Convert to fraction form
235,671.23/325,226.99 = 128,241.29/x - Step 3: Cross multiply
235,671.23x = 325,226.99 × 128,241.29 - Step 4: Simplify right side
235,671.23x = 41,707,528,740.42 - Step 5: Solve for x
x = 41,707,528,740.42/235,671.23 - Step 6: Final answer
x = 176,973.36
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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.