Finding the Fourth Proportional to 474,853.99, 655,294.03 and 257,057.09
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Solution
The fourth proportional to 474,853.99, 655,294.03 and 257,057.09 is: 354,736.36
Step by Step Solution
- Step 1: Write the proportion equation
474,853.99 : 655,294.03 = 257,057.09 : x - Step 2: Convert to fraction form
474,853.99/655,294.03 = 257,057.09/x - Step 3: Cross multiply
474,853.99x = 655,294.03 × 257,057.09 - Step 4: Simplify right side
474,853.99x = 168,447,976,446.17 - Step 5: Solve for x
x = 168,447,976,446.17/474,853.99 - Step 6: Final answer
x = 354,736.36
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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.