Finding the Fourth Proportional to 314,728.62, 434,325.57 and 171,488.70
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Solution
The fourth proportional to 314,728.62, 434,325.57 and 171,488.70 is: 236,654.45
Step by Step Solution
- Step 1: Write the proportion equation
314,728.62 : 434,325.57 = 171,488.70 : x - Step 2: Convert to fraction form
314,728.62/434,325.57 = 171,488.70/x - Step 3: Cross multiply
314,728.62x = 434,325.57 × 171,488.70 - Step 4: Simplify right side
314,728.62x = 74,481,927,376.06 - Step 5: Solve for x
x = 74,481,927,376.06/314,728.62 - Step 6: Final answer
x = 236,654.45
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1.5x scale
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.