Finding the Fourth Proportional to 259,486.62, 388,995.69 and 93,235.74
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Solution
The fourth proportional to 259,486.62, 388,995.69 and 93,235.74 is: 139,769.45
Step by Step Solution
- Step 1: Write the proportion equation
259,486.62 : 388,995.69 = 93,235.74 : x - Step 2: Convert to fraction form
259,486.62/388,995.69 = 93,235.74/x - Step 3: Cross multiply
259,486.62x = 388,995.69 × 93,235.74 - Step 4: Simplify right side
259,486.62x = 36,268,301,013.96 - Step 5: Solve for x
x = 36,268,301,013.96/259,486.62 - Step 6: Final answer
x = 139,769.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.