Finding the Fourth Proportional to 211,017.35, 291,201.99 and 115,523.21
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Solution
The fourth proportional to 211,017.35, 291,201.99 and 115,523.21 is: 159,420.96
Step by Step Solution
- Step 1: Write the proportion equation
211,017.35 : 291,201.99 = 115,523.21 : x - Step 2: Convert to fraction form
211,017.35/291,201.99 = 115,523.21/x - Step 3: Cross multiply
211,017.35x = 291,201.99 × 115,523.21 - Step 4: Simplify right side
211,017.35x = 33,640,588,937.98 - Step 5: Solve for x
x = 33,640,588,937.98/211,017.35 - Step 6: Final answer
x = 159,420.96
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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.