Finding the Fourth Proportional to 261,637.20, 392,455.80 and 93,347.55
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Solution
The fourth proportional to 261,637.20, 392,455.80 and 93,347.55 is: 140,021.33
Step by Step Solution
- Step 1: Write the proportion equation
261,637.20 : 392,455.80 = 93,347.55 : x - Step 2: Convert to fraction form
261,637.20/392,455.80 = 93,347.55/x - Step 3: Cross multiply
261,637.20x = 392,455.80 × 93,347.55 - Step 4: Simplify right side
261,637.20x = 36,634,787,413.29 - Step 5: Solve for x
x = 36,634,787,413.29/261,637.20 - Step 6: Final answer
x = 140,021.33
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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.