Finding the Fourth Proportional to 261,497.70, 392,246.55 and 71,957.70
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Solution
The fourth proportional to 261,497.70, 392,246.55 and 71,957.70 is: 107,936.55
Step by Step Solution
- Step 1: Write the proportion equation
261,497.70 : 392,246.55 = 71,957.70 : x - Step 2: Convert to fraction form
261,497.70/392,246.55 = 71,957.70/x - Step 3: Cross multiply
261,497.70x = 392,246.55 × 71,957.70 - Step 4: Simplify right side
261,497.70x = 28,225,159,570.94 - Step 5: Solve for x
x = 28,225,159,570.94/261,497.70 - Step 6: Final answer
x = 107,936.55
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1.5x scale
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.