Finding the Fourth Proportional to 178,962.21, 246,968.70 and 98,394.95
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Solution
The fourth proportional to 178,962.21, 246,968.70 and 98,394.95 is: 135,785.50
Step by Step Solution
- Step 1: Write the proportion equation
178,962.21 : 246,968.70 = 98,394.95 : x - Step 2: Convert to fraction form
178,962.21/246,968.70 = 98,394.95/x - Step 3: Cross multiply
178,962.21x = 246,968.70 × 98,394.95 - Step 4: Simplify right side
178,962.21x = 24,300,472,888.07 - Step 5: Solve for x
x = 24,300,472,888.07/178,962.21 - Step 6: Final answer
x = 135,785.50
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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.