Finding the Fourth Proportional to 261,886.08, 361,402.88 and 142,654.08
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Solution
The fourth proportional to 261,886.08, 361,402.88 and 142,654.08 is: 196,862.68
Step by Step Solution
- Step 1: Write the proportion equation
261,886.08 : 361,402.88 = 142,654.08 : x - Step 2: Convert to fraction form
261,886.08/361,402.88 = 142,654.08/x - Step 3: Cross multiply
261,886.08x = 361,402.88 × 142,654.08 - Step 4: Simplify right side
261,886.08x = 51,555,595,355.75 - Step 5: Solve for x
x = 51,555,595,355.75/261,886.08 - Step 6: Final answer
x = 196,862.68
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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.