Finding the Fourth Proportional to 429,142.84, 643,714.80 and 148,660.08
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Solution
The fourth proportional to 429,142.84, 643,714.80 and 148,660.08 is: 222,990.31
Step by Step Solution
- Step 1: Write the proportion equation
429,142.84 : 643,714.80 = 148,660.08 : x - Step 2: Convert to fraction form
429,142.84/643,714.80 = 148,660.08/x - Step 3: Cross multiply
429,142.84x = 643,714.80 × 148,660.08 - Step 4: Simplify right side
429,142.84x = 95,694,693,665.18 - Step 5: Solve for x
x = 95,694,693,665.18/429,142.84 - Step 6: Final answer
x = 222,990.31
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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.