Finding the Fourth Proportional to 238,378.47, 328,824.84 and 142,829.79
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Solution
The fourth proportional to 238,378.47, 328,824.84 and 142,829.79 is: 197,022.75
Step by Step Solution
- Step 1: Write the proportion equation
238,378.47 : 328,824.84 = 142,829.79 : x - Step 2: Convert to fraction form
238,378.47/328,824.84 = 142,829.79/x - Step 3: Cross multiply
238,378.47x = 328,824.84 × 142,829.79 - Step 4: Simplify right side
238,378.47x = 46,965,982,843.98 - Step 5: Solve for x
x = 46,965,982,843.98/238,378.47 - Step 6: Final answer
x = 197,022.75
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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.