Finding the Fourth Proportional to 309,927.87, 427,633.83 and 202,655.52
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Solution
The fourth proportional to 309,927.87, 427,633.83 and 202,655.52 is: 279,621.05
Step by Step Solution
- Step 1: Write the proportion equation
309,927.87 : 427,633.83 = 202,655.52 : x - Step 2: Convert to fraction form
309,927.87/427,633.83 = 202,655.52/x - Step 3: Cross multiply
309,927.87x = 427,633.83 × 202,655.52 - Step 4: Simplify right side
309,927.87x = 86,662,356,188.24 - Step 5: Solve for x
x = 86,662,356,188.24/309,927.87 - Step 6: Final answer
x = 279,621.05
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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.