Finding the Fourth Proportional to 210,246.18, 290,204.09 and 129,698.82
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Solution
The fourth proportional to 210,246.18, 290,204.09 and 129,698.82 is: 179,024.08
Step by Step Solution
- Step 1: Write the proportion equation
210,246.18 : 290,204.09 = 129,698.82 : x - Step 2: Convert to fraction form
210,246.18/290,204.09 = 129,698.82/x - Step 3: Cross multiply
210,246.18x = 290,204.09 × 129,698.82 - Step 4: Simplify right side
210,246.18x = 37,639,128,032.17 - Step 5: Solve for x
x = 37,639,128,032.17/210,246.18 - Step 6: Final answer
x = 179,024.08
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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.