Finding the Fourth Proportional to 309,747.87, 427,602.25 and 207,736.02
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Solution
The fourth proportional to 309,747.87, 427,602.25 and 207,736.02 is: 286,776.43
Step by Step Solution
- Step 1: Write the proportion equation
309,747.87 : 427,602.25 = 207,736.02 : x - Step 2: Convert to fraction form
309,747.87/427,602.25 = 207,736.02/x - Step 3: Cross multiply
309,747.87x = 427,602.25 × 207,736.02 - Step 4: Simplify right side
309,747.87x = 88,828,389,558.05 - Step 5: Solve for x
x = 88,828,389,558.05/309,747.87 - Step 6: Final answer
x = 286,776.43
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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.