Finding the Fourth Proportional to 210,454.72, 290,422.68 and 114,961.84
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Solution
The fourth proportional to 210,454.72, 290,422.68 and 114,961.84 is: 158,644.70
Step by Step Solution
- Step 1: Write the proportion equation
210,454.72 : 290,422.68 = 114,961.84 : x - Step 2: Convert to fraction form
210,454.72/290,422.68 = 114,961.84/x - Step 3: Cross multiply
210,454.72x = 290,422.68 × 114,961.84 - Step 4: Simplify right side
210,454.72x = 33,387,525,670.53 - Step 5: Solve for x
x = 33,387,525,670.53/210,454.72 - Step 6: Final answer
x = 158,644.70
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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.