Finding the Fourth Proportional to 340,779.70, 511,169.48 and 91,461.70
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Solution
The fourth proportional to 340,779.70, 511,169.48 and 91,461.70 is: 137,192.53
Step by Step Solution
- Step 1: Write the proportion equation
340,779.70 : 511,169.48 = 91,461.70 : x - Step 2: Convert to fraction form
340,779.70/511,169.48 = 91,461.70/x - Step 3: Cross multiply
340,779.70x = 511,169.48 × 91,461.70 - Step 4: Simplify right side
340,779.70x = 46,752,427,893.68 - Step 5: Solve for x
x = 46,752,427,893.68/340,779.70 - Step 6: Final answer
x = 137,192.53
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1.5x scale
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.