Finding the Fourth Proportional to 211,874.80, 292,389.36 and 115,079.59
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Solution
The fourth proportional to 211,874.80, 292,389.36 and 115,079.59 is: 158,810.99
Step by Step Solution
- Step 1: Write the proportion equation
211,874.80 : 292,389.36 = 115,079.59 : x - Step 2: Convert to fraction form
211,874.80/292,389.36 = 115,079.59/x - Step 3: Cross multiply
211,874.80x = 292,389.36 × 115,079.59 - Step 4: Simplify right side
211,874.80x = 33,648,046,938.19 - Step 5: Solve for x
x = 33,648,046,938.19/211,874.80 - Step 6: Final answer
x = 158,810.99
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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.