Finding the Fourth Proportional to 216,211.06, 298,368.12 and 120,719.08
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Solution
The fourth proportional to 216,211.06, 298,368.12 and 120,719.08 is: 166,590.58
Step by Step Solution
- Step 1: Write the proportion equation
216,211.06 : 298,368.12 = 120,719.08 : x - Step 2: Convert to fraction form
216,211.06/298,368.12 = 120,719.08/x - Step 3: Cross multiply
216,211.06x = 298,368.12 × 120,719.08 - Step 4: Simplify right side
216,211.06x = 36,018,724,947.73 - Step 5: Solve for x
x = 36,018,724,947.73/216,211.06 - Step 6: Final answer
x = 166,590.58
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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.