Finding the Fourth Proportional to 458,387.38, 632,585.49 and 257,198.26
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Solution
The fourth proportional to 458,387.38, 632,585.49 and 257,198.26 is: 354,939.72
Step by Step Solution
- Step 1: Write the proportion equation
458,387.38 : 632,585.49 = 257,198.26 : x - Step 2: Convert to fraction form
458,387.38/632,585.49 = 257,198.26/x - Step 3: Cross multiply
458,387.38x = 632,585.49 × 257,198.26 - Step 4: Simplify right side
458,387.38x = 162,699,887,329.25 - Step 5: Solve for x
x = 162,699,887,329.25/458,387.38 - Step 6: Final answer
x = 354,939.72
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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.