Finding the Fourth Proportional to 153,898.99, 231,084.80 and 137,188.99
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Solution
The fourth proportional to 153,898.99, 231,084.80 and 137,188.99 is: 205,994.15
Step by Step Solution
- Step 1: Write the proportion equation
153,898.99 : 231,084.80 = 137,188.99 : x - Step 2: Convert to fraction form
153,898.99/231,084.80 = 137,188.99/x - Step 3: Cross multiply
153,898.99x = 231,084.80 × 137,188.99 - Step 4: Simplify right side
153,898.99x = 31,702,290,433.72 - Step 5: Solve for x
x = 31,702,290,433.72/153,898.99 - Step 6: Final answer
x = 205,994.15
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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.