Finding the Fourth Proportional to 372,138.36, 513,546.12 and 202,368.84
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Solution
The fourth proportional to 372,138.36, 513,546.12 and 202,368.84 is: 279,266.38
Step by Step Solution
- Step 1: Write the proportion equation
372,138.36 : 513,546.12 = 202,368.84 : x - Step 2: Convert to fraction form
372,138.36/513,546.12 = 202,368.84/x - Step 3: Cross multiply
372,138.36x = 513,546.12 × 202,368.84 - Step 4: Simplify right side
372,138.36x = 103,925,732,590.90 - Step 5: Solve for x
x = 103,925,732,590.90/372,138.36 - Step 6: Final answer
x = 279,266.38
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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.