Finding the Fourth Proportional to 261,990.48, 392,985.68 and 84,497.48
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Solution
The fourth proportional to 261,990.48, 392,985.68 and 84,497.48 is: 126,746.20
Step by Step Solution
- Step 1: Write the proportion equation
261,990.48 : 392,985.68 = 84,497.48 : x - Step 2: Convert to fraction form
261,990.48/392,985.68 = 84,497.48/x - Step 3: Cross multiply
261,990.48x = 392,985.68 × 84,497.48 - Step 4: Simplify right side
261,990.48x = 33,206,298,722.37 - Step 5: Solve for x
x = 33,206,298,722.37/261,990.48 - Step 6: Final answer
x = 126,746.20
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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.