Finding the Fourth Proportional to 235,676.79, 325,235.05 and 128,246.09
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Solution
The fourth proportional to 235,676.79, 325,235.05 and 128,246.09 is: 176,980.18
Step by Step Solution
- Step 1: Write the proportion equation
235,676.79 : 325,235.05 = 128,246.09 : x - Step 2: Convert to fraction form
235,676.79/325,235.05 = 128,246.09/x - Step 3: Cross multiply
235,676.79x = 325,235.05 × 128,246.09 - Step 4: Simplify right side
235,676.79x = 41,710,121,546.66 - Step 5: Solve for x
x = 41,710,121,546.66/235,676.79 - Step 6: Final answer
x = 176,980.18
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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.