Finding the Fourth Proportional to 316,520.76, 474,827.76 and 91,851.96
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Solution
The fourth proportional to 316,520.76, 474,827.76 and 91,851.96 is: 137,791.47
Step by Step Solution
- Step 1: Write the proportion equation
316,520.76 : 474,827.76 = 91,851.96 : x - Step 2: Convert to fraction form
316,520.76/474,827.76 = 91,851.96/x - Step 3: Cross multiply
316,520.76x = 474,827.76 × 91,851.96 - Step 4: Simplify right side
316,520.76x = 43,613,860,418.41 - Step 5: Solve for x
x = 43,613,860,418.41/316,520.76 - Step 6: Final answer
x = 137,791.47
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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.