Finding the Fourth Proportional to 279,089.88, 385,253.58 and 197,842.79
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Solution
The fourth proportional to 279,089.88, 385,253.58 and 197,842.79 is: 273,100.70
Step by Step Solution
- Step 1: Write the proportion equation
279,089.88 : 385,253.58 = 197,842.79 : x - Step 2: Convert to fraction form
279,089.88/385,253.58 = 197,842.79/x - Step 3: Cross multiply
279,089.88x = 385,253.58 × 197,842.79 - Step 4: Simplify right side
279,089.88x = 76,219,640,209.21 - Step 5: Solve for x
x = 76,219,640,209.21/279,089.88 - Step 6: Final answer
x = 273,100.70
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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.