Finding the Fourth Proportional to 316,310.90, 474,466.35 and 129,278.66
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Solution
The fourth proportional to 316,310.90, 474,466.35 and 129,278.66 is: 193,917.99
Step by Step Solution
- Step 1: Write the proportion equation
316,310.90 : 474,466.35 = 129,278.66 : x - Step 2: Convert to fraction form
316,310.90/474,466.35 = 129,278.66/x - Step 3: Cross multiply
316,310.90x = 474,466.35 × 129,278.66 - Step 4: Simplify right side
316,310.90x = 61,338,373,943.09 - Step 5: Solve for x
x = 61,338,373,943.09/316,310.90 - Step 6: Final answer
x = 193,917.99
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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.