Finding the Fourth Proportional to 257,439.63, 355,194.70 and 202,822.25
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Solution
The fourth proportional to 257,439.63, 355,194.70 and 202,822.25 is: 279,837.99
Step by Step Solution
- Step 1: Write the proportion equation
257,439.63 : 355,194.70 = 202,822.25 : x - Step 2: Convert to fraction form
257,439.63/355,194.70 = 202,822.25/x - Step 3: Cross multiply
257,439.63x = 355,194.70 × 202,822.25 - Step 4: Simplify right side
257,439.63x = 72,041,388,242.08 - Step 5: Solve for x
x = 72,041,388,242.08/257,439.63 - Step 6: Final answer
x = 279,837.99
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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.