Finding the Fourth Proportional to 371,839.05, 513,126.77 and 202,073.49
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Solution
The fourth proportional to 371,839.05, 513,126.77 and 202,073.49 is: 278,855.37
Step by Step Solution
- Step 1: Write the proportion equation
371,839.05 : 513,126.77 = 202,073.49 : x - Step 2: Convert to fraction form
371,839.05/513,126.77 = 202,073.49/x - Step 3: Cross multiply
371,839.05x = 513,126.77 × 202,073.49 - Step 4: Simplify right side
371,839.05x = 103,689,316,215.96 - Step 5: Solve for x
x = 103,689,316,215.96/371,839.05 - Step 6: Final answer
x = 278,855.37
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1.5x scale
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.