Finding the Fourth Proportional to 281,124.95, 421,686.91 and 91,585.09
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Solution
The fourth proportional to 281,124.95, 421,686.91 and 91,585.09 is: 137,377.47
Step by Step Solution
- Step 1: Write the proportion equation
281,124.95 : 421,686.91 = 91,585.09 : x - Step 2: Convert to fraction form
281,124.95/421,686.91 = 91,585.09/x - Step 3: Cross multiply
281,124.95x = 421,686.91 × 91,585.09 - Step 4: Simplify right side
281,124.95x = 38,620,233,146.25 - Step 5: Solve for x
x = 38,620,233,146.25/281,124.95 - Step 6: Final answer
x = 137,377.47
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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.