Finding the Fourth Proportional to 309,925.98, 427,212.63 and 202,442.22
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Solution
The fourth proportional to 309,925.98, 427,212.63 and 202,442.22 is: 279,053.32
Step by Step Solution
- Step 1: Write the proportion equation
309,925.98 : 427,212.63 = 202,442.22 : x - Step 2: Convert to fraction form
309,925.98/427,212.63 = 202,442.22/x - Step 3: Cross multiply
309,925.98x = 427,212.63 × 202,442.22 - Step 4: Simplify right side
309,925.98x = 86,485,873,229.24 - Step 5: Solve for x
x = 86,485,873,229.24/309,925.98 - Step 6: Final answer
x = 279,053.32
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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.