Finding the Fourth Proportional to 154,019.55, 212,433.26 and 97,376.25
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Solution
The fourth proportional to 154,019.55, 212,433.26 and 97,376.25 is: 134,307.32
Step by Step Solution
- Step 1: Write the proportion equation
154,019.55 : 212,433.26 = 97,376.25 : x - Step 2: Convert to fraction form
154,019.55/212,433.26 = 97,376.25/x - Step 3: Cross multiply
154,019.55x = 212,433.26 × 97,376.25 - Step 4: Simplify right side
154,019.55x = 20,685,953,747.19 - Step 5: Solve for x
x = 20,685,953,747.19/154,019.55 - Step 6: Final answer
x = 134,307.32
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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.