Finding the Fourth Proportional to 309,551.91, 427,272.35 and 202,138.62
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Solution
The fourth proportional to 309,551.91, 427,272.35 and 202,138.62 is: 279,010.53
Step by Step Solution
- Step 1: Write the proportion equation
309,551.91 : 427,272.35 = 202,138.62 : x - Step 2: Convert to fraction form
309,551.91/427,272.35 = 202,138.62/x - Step 3: Cross multiply
309,551.91x = 427,272.35 × 202,138.62 - Step 4: Simplify right side
309,551.91x = 86,368,242,182.46 - Step 5: Solve for x
x = 86,368,242,182.46/309,551.91 - Step 6: Final answer
x = 279,010.53
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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.