Finding the Fourth Proportional to 274,296.72, 378,511.70 and 153,417.09
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Solution
The fourth proportional to 274,296.72, 378,511.70 and 153,417.09 is: 211,705.64
Step by Step Solution
- Step 1: Write the proportion equation
274,296.72 : 378,511.70 = 153,417.09 : x - Step 2: Convert to fraction form
274,296.72/378,511.70 = 153,417.09/x - Step 3: Cross multiply
274,296.72x = 378,511.70 × 153,417.09 - Step 4: Simplify right side
274,296.72x = 58,070,162,777.87 - Step 5: Solve for x
x = 58,070,162,777.87/274,296.72 - Step 6: Final answer
x = 211,705.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.