Finding the Fourth Proportional to 236,854.12, 326,853.86 and 129,424.68
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Solution
The fourth proportional to 236,854.12, 326,853.86 and 129,424.68 is: 178,603.42
Step by Step Solution
- Step 1: Write the proportion equation
236,854.12 : 326,853.86 = 129,424.68 : x - Step 2: Convert to fraction form
236,854.12/326,853.86 = 129,424.68/x - Step 3: Cross multiply
236,854.12x = 326,853.86 × 129,424.68 - Step 4: Simplify right side
236,854.12x = 42,302,956,237.26 - Step 5: Solve for x
x = 42,302,956,237.26/236,854.12 - Step 6: Final answer
x = 178,603.42
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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.