Finding the Fourth Proportional to 210,637.98, 290,513.09 and 159,126.84
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Solution
The fourth proportional to 210,637.98, 290,513.09 and 159,126.84 is: 219,468.63
Step by Step Solution
- Step 1: Write the proportion equation
210,637.98 : 290,513.09 = 159,126.84 : x - Step 2: Convert to fraction form
210,637.98/290,513.09 = 159,126.84/x - Step 3: Cross multiply
210,637.98x = 290,513.09 × 159,126.84 - Step 4: Simplify right side
210,637.98x = 46,228,429,194.70 - Step 5: Solve for x
x = 46,228,429,194.70/210,637.98 - Step 6: Final answer
x = 219,468.63
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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.