Finding the Fourth Proportional to 236,775.64, 326,746.26 and 129,342.91
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Solution
The fourth proportional to 236,775.64, 326,746.26 and 129,342.91 is: 178,490.96
Step by Step Solution
- Step 1: Write the proportion equation
236,775.64 : 326,746.26 = 129,342.91 : x - Step 2: Convert to fraction form
236,775.64/326,746.26 = 129,342.91/x - Step 3: Cross multiply
236,775.64x = 326,746.26 × 129,342.91 - Step 4: Simplify right side
236,775.64x = 42,262,311,283.15 - Step 5: Solve for x
x = 42,262,311,283.15/236,775.64 - Step 6: Final answer
x = 178,490.96
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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.