Finding the Fourth Proportional to 211,878.42, 292,320.84 and 119,985.14
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Solution
The fourth proportional to 211,878.42, 292,320.84 and 119,985.14 is: 165,539.07
Step by Step Solution
- Step 1: Write the proportion equation
211,878.42 : 292,320.84 = 119,985.14 : x - Step 2: Convert to fraction form
211,878.42/292,320.84 = 119,985.14/x - Step 3: Cross multiply
211,878.42x = 292,320.84 × 119,985.14 - Step 4: Simplify right side
211,878.42x = 35,074,156,912.32 - Step 5: Solve for x
x = 35,074,156,912.32/211,878.42 - Step 6: Final answer
x = 165,539.07
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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.