Finding the Fourth Proportional to 312,927.08, 431,726.18 and 205,555.56
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Solution
The fourth proportional to 312,927.08, 431,726.18 and 205,555.56 is: 283,592.32
Step by Step Solution
- Step 1: Write the proportion equation
312,927.08 : 431,726.18 = 205,555.56 : x - Step 2: Convert to fraction form
312,927.08/431,726.18 = 205,555.56/x - Step 3: Cross multiply
312,927.08x = 431,726.18 × 205,555.56 - Step 4: Simplify right side
312,927.08x = 88,743,716,696.56 - Step 5: Solve for x
x = 88,743,716,696.56/312,927.08 - Step 6: Final answer
x = 283,592.32
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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.