Finding the Fourth Proportional to 138,862.79, 208,294.17 and 48,884.31
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Solution
The fourth proportional to 138,862.79, 208,294.17 and 48,884.31 is: 73,326.46
Step by Step Solution
- Step 1: Write the proportion equation
138,862.79 : 208,294.17 = 48,884.31 : x - Step 2: Convert to fraction form
138,862.79/208,294.17 = 48,884.31/x - Step 3: Cross multiply
138,862.79x = 208,294.17 × 48,884.31 - Step 4: Simplify right side
138,862.79x = 10,182,316,594.16 - Step 5: Solve for x
x = 10,182,316,594.16/138,862.79 - Step 6: Final answer
x = 73,326.46
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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.