Finding the Fourth Proportional to 138,302.19, 207,322.07 and 49,509.99
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Solution
The fourth proportional to 138,302.19, 207,322.07 and 49,509.99 is: 74,218.01
Step by Step Solution
- Step 1: Write the proportion equation
138,302.19 : 207,322.07 = 49,509.99 : x - Step 2: Convert to fraction form
138,302.19/207,322.07 = 49,509.99/x - Step 3: Cross multiply
138,302.19x = 207,322.07 × 49,509.99 - Step 4: Simplify right side
138,302.19x = 10,264,513,364.93 - Step 5: Solve for x
x = 10,264,513,364.93/138,302.19 - Step 6: Final answer
x = 74,218.01
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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.