Finding the Fourth Proportional to 197,555.19, 272,626.14 and 106,911.15
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Solution
The fourth proportional to 197,555.19, 272,626.14 and 106,911.15 is: 147,537.38
Step by Step Solution
- Step 1: Write the proportion equation
197,555.19 : 272,626.14 = 106,911.15 : x - Step 2: Convert to fraction form
197,555.19/272,626.14 = 106,911.15/x - Step 3: Cross multiply
197,555.19x = 272,626.14 × 106,911.15 - Step 4: Simplify right side
197,555.19x = 29,146,773,691.42 - Step 5: Solve for x
x = 29,146,773,691.42/197,555.19 - Step 6: Final answer
x = 147,537.38
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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.