Finding the Fourth Proportional to 248,358.23, 342,737.93 and 139,486.12
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Solution
The fourth proportional to 248,358.23, 342,737.93 and 139,486.12 is: 192,492.85
Step by Step Solution
- Step 1: Write the proportion equation
248,358.23 : 342,737.93 = 139,486.12 : x - Step 2: Convert to fraction form
248,358.23/342,737.93 = 139,486.12/x - Step 3: Cross multiply
248,358.23x = 342,737.93 × 139,486.12 - Step 4: Simplify right side
248,358.23x = 47,807,183,524.40 - Step 5: Solve for x
x = 47,807,183,524.40/248,358.23 - Step 6: Final answer
x = 192,492.85
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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.