Finding the Fourth Proportional to 256,602.91, 354,105.73 and 141,878.53
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Solution
The fourth proportional to 256,602.91, 354,105.73 and 141,878.53 is: 195,788.89
Step by Step Solution
- Step 1: Write the proportion equation
256,602.91 : 354,105.73 = 141,878.53 : x - Step 2: Convert to fraction form
256,602.91/354,105.73 = 141,878.53/x - Step 3: Cross multiply
256,602.91x = 354,105.73 × 141,878.53 - Step 4: Simplify right side
256,602.91x = 50,239,997,957.06 - Step 5: Solve for x
x = 50,239,997,957.06/256,602.91 - Step 6: Final answer
x = 195,788.89
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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.