Finding the Fourth Proportional to 153,111.18, 229,636.65 and 145,516.05
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Solution
The fourth proportional to 153,111.18, 229,636.65 and 145,516.05 is: 218,245.45
Step by Step Solution
- Step 1: Write the proportion equation
153,111.18 : 229,636.65 = 145,516.05 : x - Step 2: Convert to fraction form
153,111.18/229,636.65 = 145,516.05/x - Step 3: Cross multiply
153,111.18x = 229,636.65 × 145,516.05 - Step 4: Simplify right side
153,111.18x = 33,415,818,243.23 - Step 5: Solve for x
x = 33,415,818,243.23/153,111.18 - Step 6: Final answer
x = 218,245.45
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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.