Finding the Fourth Proportional to 389,587.76, 537,601.56 and 219,837.68
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Solution
The fourth proportional to 389,587.76, 537,601.56 and 219,837.68 is: 303,359.32
Step by Step Solution
- Step 1: Write the proportion equation
389,587.76 : 537,601.56 = 219,837.68 : x - Step 2: Convert to fraction form
389,587.76/537,601.56 = 219,837.68/x - Step 3: Cross multiply
389,587.76x = 537,601.56 × 219,837.68 - Step 4: Simplify right side
389,587.76x = 118,185,079,714.78 - Step 5: Solve for x
x = 118,185,079,714.78/389,587.76 - Step 6: Final answer
x = 303,359.32
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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.