Finding the Fourth Proportional to 210,248.18, 290,206.86 and 129,700.82
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Solution
The fourth proportional to 210,248.18, 290,206.86 and 129,700.82 is: 179,026.84
Step by Step Solution
- Step 1: Write the proportion equation
210,248.18 : 290,206.86 = 129,700.82 : x - Step 2: Convert to fraction form
210,248.18/290,206.86 = 129,700.82/x - Step 3: Cross multiply
210,248.18x = 290,206.86 × 129,700.82 - Step 4: Simplify right side
210,248.18x = 37,640,067,711.63 - Step 5: Solve for x
x = 37,640,067,711.63/210,248.18 - Step 6: Final answer
x = 179,026.84
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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.