Finding the Fourth Proportional to 257,679.79, 386,332.75 and 173,230.44
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Solution
The fourth proportional to 257,679.79, 386,332.75 and 173,230.44 is: 259,719.99
Step by Step Solution
- Step 1: Write the proportion equation
257,679.79 : 386,332.75 = 173,230.44 : x - Step 2: Convert to fraction form
257,679.79/386,332.75 = 173,230.44/x - Step 3: Cross multiply
257,679.79x = 386,332.75 × 173,230.44 - Step 4: Simplify right side
257,679.79x = 66,924,592,268.91 - Step 5: Solve for x
x = 66,924,592,268.91/257,679.79 - Step 6: Final answer
x = 259,719.99
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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.