Finding the Fourth Proportional to 210,541.40, 290,547.86 and 115,048.09
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Solution
The fourth proportional to 210,541.40, 290,547.86 and 115,048.09 is: 158,766.76
Step by Step Solution
- Step 1: Write the proportion equation
210,541.40 : 290,547.86 = 115,048.09 : x - Step 2: Convert to fraction form
210,541.40/290,547.86 = 115,048.09/x - Step 3: Cross multiply
210,541.40x = 290,547.86 × 115,048.09 - Step 4: Simplify right side
210,541.40x = 33,426,976,346.59 - Step 5: Solve for x
x = 33,426,976,346.59/210,541.40 - Step 6: Final answer
x = 158,766.76
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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.