Finding the Fourth Proportional to 212,823.70, 319,235.55 and 202,455.70
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Solution
The fourth proportional to 212,823.70, 319,235.55 and 202,455.70 is: 303,683.55
Step by Step Solution
- Step 1: Write the proportion equation
212,823.70 : 319,235.55 = 202,455.70 : x - Step 2: Convert to fraction form
212,823.70/319,235.55 = 202,455.70/x - Step 3: Cross multiply
212,823.70x = 319,235.55 × 202,455.70 - Step 4: Simplify right side
212,823.70x = 64,631,056,740.14 - Step 5: Solve for x
x = 64,631,056,740.14/212,823.70 - Step 6: Final answer
x = 303,683.55
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1.5x scale
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.