Finding the Fourth Proportional to 234,781.28, 351,961.44 and 84,986.48
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Solution
The fourth proportional to 234,781.28, 351,961.44 and 84,986.48 is: 127,403.53
Step by Step Solution
- Step 1: Write the proportion equation
234,781.28 : 351,961.44 = 84,986.48 : x - Step 2: Convert to fraction form
234,781.28/351,961.44 = 84,986.48/x - Step 3: Cross multiply
234,781.28x = 351,961.44 × 84,986.48 - Step 4: Simplify right side
234,781.28x = 29,911,963,881.33 - Step 5: Solve for x
x = 29,911,963,881.33/234,781.28 - Step 6: Final answer
x = 127,403.53
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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.