Finding the Fourth Proportional to 211,108.68, 291,327.57 and 115,615.08
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Solution
The fourth proportional to 211,108.68, 291,327.57 and 115,615.08 is: 159,547.49
Step by Step Solution
- Step 1: Write the proportion equation
211,108.68 : 291,327.57 = 115,615.08 : x - Step 2: Convert to fraction form
211,108.68/291,327.57 = 115,615.08/x - Step 3: Cross multiply
211,108.68x = 291,327.57 × 115,615.08 - Step 4: Simplify right side
211,108.68x = 33,681,860,311.76 - Step 5: Solve for x
x = 33,681,860,311.76/211,108.68 - Step 6: Final answer
x = 159,547.49
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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.