Finding the Fourth Proportional to 310,182.21, 427,942.44 and 202,815.09
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Solution
The fourth proportional to 310,182.21, 427,942.44 and 202,815.09 is: 279,813.55
Step by Step Solution
- Step 1: Write the proportion equation
310,182.21 : 427,942.44 = 202,815.09 : x - Step 2: Convert to fraction form
310,182.21/427,942.44 = 202,815.09/x - Step 3: Cross multiply
310,182.21x = 427,942.44 × 202,815.09 - Step 4: Simplify right side
310,182.21x = 86,793,184,483.42 - Step 5: Solve for x
x = 86,793,184,483.42/310,182.21 - Step 6: Final answer
x = 279,813.55
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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.