Finding the Fourth Proportional to 153,112.18, 229,638.15 and 145,517.05
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Solution
The fourth proportional to 153,112.18, 229,638.15 and 145,517.05 is: 218,246.95
Step by Step Solution
- Step 1: Write the proportion equation
153,112.18 : 229,638.15 = 145,517.05 : x - Step 2: Convert to fraction form
153,112.18/229,638.15 = 145,517.05/x - Step 3: Cross multiply
153,112.18x = 229,638.15 × 145,517.05 - Step 4: Simplify right side
153,112.18x = 33,416,266,155.46 - Step 5: Solve for x
x = 33,416,266,155.46/153,112.18 - Step 6: Final answer
x = 218,246.95
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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.