Finding the Fourth Proportional to 178,958.21, 246,963.18 and 98,390.95
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Solution
The fourth proportional to 178,958.21, 246,963.18 and 98,390.95 is: 135,779.98
Step by Step Solution
- Step 1: Write the proportion equation
178,958.21 : 246,963.18 = 98,390.95 : x - Step 2: Convert to fraction form
178,958.21/246,963.18 = 98,390.95/x - Step 3: Cross multiply
178,958.21x = 246,963.18 × 98,390.95 - Step 4: Simplify right side
178,958.21x = 24,298,942,482.50 - Step 5: Solve for x
x = 24,298,942,482.50/178,958.21 - Step 6: Final answer
x = 135,779.98
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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.