Finding the Fourth Proportional to 279,905.63, 386,407.67 and 193,929.80
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Solution
The fourth proportional to 279,905.63, 386,407.67 and 193,929.80 is: 267,718.66
Step by Step Solution
- Step 1: Write the proportion equation
279,905.63 : 386,407.67 = 193,929.80 : x - Step 2: Convert to fraction form
279,905.63/386,407.67 = 193,929.80/x - Step 3: Cross multiply
279,905.63x = 386,407.67 × 193,929.80 - Step 4: Simplify right side
279,905.63x = 74,935,959,259.88 - Step 5: Solve for x
x = 74,935,959,259.88/279,905.63 - Step 6: Final answer
x = 267,718.66
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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.