Finding the Fourth Proportional to 216,562.14, 298,865.04 and 121,068.81
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Solution
The fourth proportional to 216,562.14, 298,865.04 and 121,068.81 is: 167,080.15
Step by Step Solution
- Step 1: Write the proportion equation
216,562.14 : 298,865.04 = 121,068.81 : x - Step 2: Convert to fraction form
216,562.14/298,865.04 = 121,068.81/x - Step 3: Cross multiply
216,562.14x = 298,865.04 × 121,068.81 - Step 4: Simplify right side
216,562.14x = 36,183,234,743.40 - Step 5: Solve for x
x = 36,183,234,743.40/216,562.14 - Step 6: Final answer
x = 167,080.15
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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.