Finding the Fourth Proportional to 261,703.98, 392,564.07 and 72,167.63
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Solution
The fourth proportional to 261,703.98, 392,564.07 and 72,167.63 is: 108,253.67
Step by Step Solution
- Step 1: Write the proportion equation
261,703.98 : 392,564.07 = 72,167.63 : x - Step 2: Convert to fraction form
261,703.98/392,564.07 = 72,167.63/x - Step 3: Cross multiply
261,703.98x = 392,564.07 × 72,167.63 - Step 4: Simplify right side
261,703.98x = 28,330,416,592.23 - Step 5: Solve for x
x = 28,330,416,592.23/261,703.98 - Step 6: Final answer
x = 108,253.67
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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.