Finding the Fourth Proportional to 316,755.36, 474,678.36 and 190,447.20
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Solution
The fourth proportional to 316,755.36, 474,678.36 and 190,447.20 is: 285,397.43
Step by Step Solution
- Step 1: Write the proportion equation
316,755.36 : 474,678.36 = 190,447.20 : x - Step 2: Convert to fraction form
316,755.36/474,678.36 = 190,447.20/x - Step 3: Cross multiply
316,755.36x = 474,678.36 × 190,447.20 - Step 4: Simplify right side
316,755.36x = 90,401,164,562.59 - Step 5: Solve for x
x = 90,401,164,562.59/316,755.36 - Step 6: Final answer
x = 285,397.43
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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.