Finding the Fourth Proportional to 236,853.84, 326,854.36 and 129,421.41
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Solution
The fourth proportional to 236,853.84, 326,854.36 and 129,421.41 is: 178,599.39
Step by Step Solution
- Step 1: Write the proportion equation
236,853.84 : 326,854.36 = 129,421.41 : x - Step 2: Convert to fraction form
236,853.84/326,854.36 = 129,421.41/x - Step 3: Cross multiply
236,853.84x = 326,854.36 × 129,421.41 - Step 4: Simplify right side
236,853.84x = 42,301,952,135.85 - Step 5: Solve for x
x = 42,301,952,135.85/236,853.84 - Step 6: Final answer
x = 178,599.39
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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.