Finding the Fourth Proportional to 278,997.26, 384,332.87 and 202,290.98
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Solution
The fourth proportional to 278,997.26, 384,332.87 and 202,290.98 is: 278,666.08
Step by Step Solution
- Step 1: Write the proportion equation
278,997.26 : 384,332.87 = 202,290.98 : x - Step 2: Convert to fraction form
278,997.26/384,332.87 = 202,290.98/x - Step 3: Cross multiply
278,997.26x = 384,332.87 × 202,290.98 - Step 4: Simplify right side
278,997.26x = 77,747,071,502.58 - Step 5: Solve for x
x = 77,747,071,502.58/278,997.26 - Step 6: Final answer
x = 278,666.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.