Finding the Fourth Proportional to 261,576.68, 392,306.54 and 121,317.08
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Solution
The fourth proportional to 261,576.68, 392,306.54 and 121,317.08 is: 181,948.50
Step by Step Solution
- Step 1: Write the proportion equation
261,576.68 : 392,306.54 = 121,317.08 : x - Step 2: Convert to fraction form
261,576.68/392,306.54 = 121,317.08/x - Step 3: Cross multiply
261,576.68x = 392,306.54 × 121,317.08 - Step 4: Simplify right side
261,576.68x = 47,593,483,897.70 - Step 5: Solve for x
x = 47,593,483,897.70/261,576.68 - Step 6: Final answer
x = 181,948.50
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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.