Finding the Fourth Proportional to 309,272.06, 426,788.20 and 181,955.84
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Solution
The fourth proportional to 309,272.06, 426,788.20 and 181,955.84 is: 251,094.80
Step by Step Solution
- Step 1: Write the proportion equation
309,272.06 : 426,788.20 = 181,955.84 : x - Step 2: Convert to fraction form
309,272.06/426,788.20 = 181,955.84/x - Step 3: Cross multiply
309,272.06x = 426,788.20 × 181,955.84 - Step 4: Simplify right side
309,272.06x = 77,656,605,433.09 - Step 5: Solve for x
x = 77,656,605,433.09/309,272.06 - Step 6: Final answer
x = 251,094.80
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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.