Finding the Fourth Proportional to 474,945.93, 655,425.68 and 257,153.94
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Solution
The fourth proportional to 474,945.93, 655,425.68 and 257,153.94 is: 354,872.60
Step by Step Solution
- Step 1: Write the proportion equation
474,945.93 : 655,425.68 = 257,153.94 : x - Step 2: Convert to fraction form
474,945.93/655,425.68 = 257,153.94/x - Step 3: Cross multiply
474,945.93x = 655,425.68 × 257,153.94 - Step 4: Simplify right side
474,945.93x = 168,545,294,703.41 - Step 5: Solve for x
x = 168,545,294,703.41/474,945.93 - Step 6: Final answer
x = 354,872.60
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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.