Finding the Fourth Proportional to 235,518.27, 325,012.07 and 128,085.99
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Solution
The fourth proportional to 235,518.27, 325,012.07 and 128,085.99 is: 176,756.96
Step by Step Solution
- Step 1: Write the proportion equation
235,518.27 : 325,012.07 = 128,085.99 : x - Step 2: Convert to fraction form
235,518.27/325,012.07 = 128,085.99/x - Step 3: Cross multiply
235,518.27x = 325,012.07 × 128,085.99 - Step 4: Simplify right side
235,518.27x = 41,629,493,068.11 - Step 5: Solve for x
x = 41,629,493,068.11/235,518.27 - Step 6: Final answer
x = 176,756.96
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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.