Finding the Fourth Proportional to 272,349.60, 408,961.80 and 205,864.80
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Solution
The fourth proportional to 272,349.60, 408,961.80 and 205,864.80 is: 309,127.82
Step by Step Solution
- Step 1: Write the proportion equation
272,349.60 : 408,961.80 = 205,864.80 : x - Step 2: Convert to fraction form
272,349.60/408,961.80 = 205,864.80/x - Step 3: Cross multiply
272,349.60x = 408,961.80 × 205,864.80 - Step 4: Simplify right side
272,349.60x = 84,190,839,164.64 - Step 5: Solve for x
x = 84,190,839,164.64/272,349.60 - Step 6: Final answer
x = 309,127.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.