Finding the Fourth Proportional to 281,184.84, 388,041.36 and 153,860.40
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Solution
The fourth proportional to 281,184.84, 388,041.36 and 153,860.40 is: 212,330.79
Step by Step Solution
- Step 1: Write the proportion equation
281,184.84 : 388,041.36 = 153,860.40 : x - Step 2: Convert to fraction form
281,184.84/388,041.36 = 153,860.40/x - Step 3: Cross multiply
281,184.84x = 388,041.36 × 153,860.40 - Step 4: Simplify right side
281,184.84x = 59,704,198,866.14 - Step 5: Solve for x
x = 59,704,198,866.14/281,184.84 - Step 6: Final answer
x = 212,330.79
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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.