Finding the Fourth Proportional to 236,795.76, 326,776.95 and 129,371.94
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Solution
The fourth proportional to 236,795.76, 326,776.95 and 129,371.94 is: 178,532.62
Step by Step Solution
- Step 1: Write the proportion equation
236,795.76 : 326,776.95 = 129,371.94 : x - Step 2: Convert to fraction form
236,795.76/326,776.95 = 129,371.94/x - Step 3: Cross multiply
236,795.76x = 326,776.95 × 129,371.94 - Step 4: Simplify right side
236,795.76x = 42,275,767,968.78 - Step 5: Solve for x
x = 42,275,767,968.78/236,795.76 - Step 6: Final answer
x = 178,532.62
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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.