Finding the Fourth Proportional to 236,691.45, 326,628.99 and 129,261.93
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Solution
The fourth proportional to 236,691.45, 326,628.99 and 129,261.93 is: 178,378.61
Step by Step Solution
- Step 1: Write the proportion equation
236,691.45 : 326,628.99 = 129,261.93 : x - Step 2: Convert to fraction form
236,691.45/326,628.99 = 129,261.93/x - Step 3: Cross multiply
236,691.45x = 326,628.99 × 129,261.93 - Step 4: Simplify right side
236,691.45x = 42,220,692,416.49 - Step 5: Solve for x
x = 42,220,692,416.49/236,691.45 - Step 6: Final answer
x = 178,378.61
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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.