Finding the Fourth Proportional to 389,684.88, 537,707.48 and 236,643.48
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Solution
The fourth proportional to 389,684.88, 537,707.48 and 236,643.48 is: 326,532.99
Step by Step Solution
- Step 1: Write the proportion equation
389,684.88 : 537,707.48 = 236,643.48 : x - Step 2: Convert to fraction form
389,684.88/537,707.48 = 236,643.48/x - Step 3: Cross multiply
389,684.88x = 537,707.48 × 236,643.48 - Step 4: Simplify right side
389,684.88x = 127,244,968,106.01 - Step 5: Solve for x
x = 127,244,968,106.01/389,684.88 - Step 6: Final answer
x = 326,532.99
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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.