Finding the Fourth Proportional to 312,098.30, 430,695.75 and 168,858.26
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Solution
The fourth proportional to 312,098.30, 430,695.75 and 168,858.26 is: 233,024.45
Step by Step Solution
- Step 1: Write the proportion equation
312,098.30 : 430,695.75 = 168,858.26 : x - Step 2: Convert to fraction form
312,098.30/430,695.75 = 168,858.26/x - Step 3: Cross multiply
312,098.30x = 430,695.75 × 168,858.26 - Step 4: Simplify right side
312,098.30x = 72,726,534,934.40 - Step 5: Solve for x
x = 72,726,534,934.40/312,098.30 - Step 6: Final answer
x = 233,024.45
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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.