Finding the Fourth Proportional to 261,691.18, 392,532.21 and 143,297.94
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Solution
The fourth proportional to 261,691.18, 392,532.21 and 143,297.94 is: 214,944.41
Step by Step Solution
- Step 1: Write the proportion equation
261,691.18 : 392,532.21 = 143,297.94 : x - Step 2: Convert to fraction form
261,691.18/392,532.21 = 143,297.94/x - Step 3: Cross multiply
261,691.18x = 392,532.21 × 143,297.94 - Step 4: Simplify right side
261,691.18x = 56,249,055,841.19 - Step 5: Solve for x
x = 56,249,055,841.19/261,691.18 - Step 6: Final answer
x = 214,944.41
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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.