Finding the Fourth Proportional to 312,125.23, 430,733.06 and 216,687.29
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Solution
The fourth proportional to 312,125.23, 430,733.06 and 216,687.29 is: 299,028.62
Step by Step Solution
- Step 1: Write the proportion equation
312,125.23 : 430,733.06 = 216,687.29 : x - Step 2: Convert to fraction form
312,125.23/430,733.06 = 216,687.29/x - Step 3: Cross multiply
312,125.23x = 430,733.06 × 216,687.29 - Step 4: Simplify right side
312,125.23x = 93,334,377,060.28 - Step 5: Solve for x
x = 93,334,377,060.28/312,125.23 - Step 6: Final answer
x = 299,028.62
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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.