Finding the Fourth Proportional to 408,351.14, 612,478.11 and 108,854.18
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Solution
The fourth proportional to 408,351.14, 612,478.11 and 108,854.18 is: 163,268.31
Step by Step Solution
- Step 1: Write the proportion equation
408,351.14 : 612,478.11 = 108,854.18 : x - Step 2: Convert to fraction form
408,351.14/612,478.11 = 108,854.18/x - Step 3: Cross multiply
408,351.14x = 612,478.11 × 108,854.18 - Step 4: Simplify right side
408,351.14x = 66,670,802,432.00 - Step 5: Solve for x
x = 66,670,802,432.00/408,351.14 - Step 6: Final answer
x = 163,268.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.