Finding the Fourth Proportional to 402,947.39, 556,068.66 and 221,673.09
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Solution
The fourth proportional to 402,947.39, 556,068.66 and 221,673.09 is: 305,909.56
Step by Step Solution
- Step 1: Write the proportion equation
402,947.39 : 556,068.66 = 221,673.09 : x - Step 2: Convert to fraction form
402,947.39/556,068.66 = 221,673.09/x - Step 3: Cross multiply
402,947.39x = 556,068.66 × 221,673.09 - Step 4: Simplify right side
402,947.39x = 123,265,458,114.36 - Step 5: Solve for x
x = 123,265,458,114.36/402,947.39 - Step 6: Final answer
x = 305,909.56
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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.