Finding the Fourth Proportional to 257,642.60, 386,277.05 and 173,193.28
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Solution
The fourth proportional to 257,642.60, 386,277.05 and 173,193.28 is: 259,664.32
Step by Step Solution
- Step 1: Write the proportion equation
257,642.60 : 386,277.05 = 173,193.28 : x - Step 2: Convert to fraction form
257,642.60/386,277.05 = 173,193.28/x - Step 3: Cross multiply
257,642.60x = 386,277.05 × 173,193.28 - Step 4: Simplify right side
257,642.60x = 66,900,588,745.51 - Step 5: Solve for x
x = 66,900,588,745.51/257,642.60 - Step 6: Final answer
x = 259,664.32
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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.