Finding the Fourth Proportional to 371,897.16, 513,216.08 and 210,782.68
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Solution
The fourth proportional to 371,897.16, 513,216.08 and 210,782.68 is: 290,878.96
Step by Step Solution
- Step 1: Write the proportion equation
371,897.16 : 513,216.08 = 210,782.68 : x - Step 2: Convert to fraction form
371,897.16/513,216.08 = 210,782.68/x - Step 3: Cross multiply
371,897.16x = 513,216.08 × 210,782.68 - Step 4: Simplify right side
371,897.16x = 108,177,060,761.49 - Step 5: Solve for x
x = 108,177,060,761.49/371,897.16 - Step 6: Final answer
x = 290,878.96
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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.