Finding the Fourth Proportional to 261,341.10, 392,141.25 and 103,566.06
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Solution
The fourth proportional to 261,341.10, 392,141.25 and 103,566.06 is: 155,400.45
Step by Step Solution
- Step 1: Write the proportion equation
261,341.10 : 392,141.25 = 103,566.06 : x - Step 2: Convert to fraction form
261,341.10/392,141.25 = 103,566.06/x - Step 3: Cross multiply
261,341.10x = 392,141.25 × 103,566.06 - Step 4: Simplify right side
261,341.10x = 40,612,524,225.98 - Step 5: Solve for x
x = 40,612,524,225.98/261,341.10 - Step 6: Final answer
x = 155,400.45
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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.