Finding the Fourth Proportional to 274,122.35, 378,296.70 and 153,263.95
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Solution
The fourth proportional to 274,122.35, 378,296.70 and 153,263.95 is: 211,508.64
Step by Step Solution
- Step 1: Write the proportion equation
274,122.35 : 378,296.70 = 153,263.95 : x - Step 2: Convert to fraction form
274,122.35/378,296.70 = 153,263.95/x - Step 3: Cross multiply
274,122.35x = 378,296.70 × 153,263.95 - Step 4: Simplify right side
274,122.35x = 57,979,244,622.48 - Step 5: Solve for x
x = 57,979,244,622.48/274,122.35 - Step 6: Final answer
x = 211,508.64
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1.5x scale
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.