Finding the Fourth Proportional to 237,681.18, 327,990.63 and 142,130.94
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Solution
The fourth proportional to 237,681.18, 327,990.63 and 142,130.94 is: 196,135.08
Step by Step Solution
- Step 1: Write the proportion equation
237,681.18 : 327,990.63 = 142,130.94 : x - Step 2: Convert to fraction form
237,681.18/327,990.63 = 142,130.94/x - Step 3: Cross multiply
237,681.18x = 327,990.63 × 142,130.94 - Step 4: Simplify right side
237,681.18x = 46,617,616,553.09 - Step 5: Solve for x
x = 46,617,616,553.09/237,681.18 - Step 6: Final answer
x = 196,135.08
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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.