Finding the Fourth Proportional to 311,497.94, 429,867.42 and 168,258.10
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Solution
The fourth proportional to 311,497.94, 429,867.42 and 168,258.10 is: 232,196.31
Step by Step Solution
- Step 1: Write the proportion equation
311,497.94 : 429,867.42 = 168,258.10 : x - Step 2: Convert to fraction form
311,497.94/429,867.42 = 168,258.10/x - Step 3: Cross multiply
311,497.94x = 429,867.42 × 168,258.10 - Step 4: Simplify right side
311,497.94x = 72,328,674,266.43 - Step 5: Solve for x
x = 72,328,674,266.43/311,497.94 - Step 6: Final answer
x = 232,196.31
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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.