Finding the Fourth Proportional to 304,830.79, 420,660.97 and 168,864.32
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Solution
The fourth proportional to 304,830.79, 420,660.97 and 168,864.32 is: 233,029.71
Step by Step Solution
- Step 1: Write the proportion equation
304,830.79 : 420,660.97 = 168,864.32 : x - Step 2: Convert to fraction form
304,830.79/420,660.97 = 168,864.32/x - Step 3: Cross multiply
304,830.79x = 420,660.97 × 168,864.32 - Step 4: Simplify right side
304,830.79x = 71,034,629,279.08 - Step 5: Solve for x
x = 71,034,629,279.08/304,830.79 - Step 6: Final answer
x = 233,029.71
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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.