Finding the Fourth Proportional to 316,519.20, 474,762.30 and 79,863.94
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Solution
The fourth proportional to 316,519.20, 474,762.30 and 79,863.94 is: 119,791.75
Step by Step Solution
- Step 1: Write the proportion equation
316,519.20 : 474,762.30 = 79,863.94 : x - Step 2: Convert to fraction form
316,519.20/474,762.30 = 79,863.94/x - Step 3: Cross multiply
316,519.20x = 474,762.30 × 79,863.94 - Step 4: Simplify right side
316,519.20x = 37,916,387,841.46 - Step 5: Solve for x
x = 37,916,387,841.46/316,519.20 - Step 6: Final answer
x = 119,791.75
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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.