Finding the Fourth Proportional to 238,951.71, 358,342.19 and 78,998.12
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Solution
The fourth proportional to 238,951.71, 358,342.19 and 78,998.12 is: 118,468.95
Step by Step Solution
- Step 1: Write the proportion equation
238,951.71 : 358,342.19 = 78,998.12 : x - Step 2: Convert to fraction form
238,951.71/358,342.19 = 78,998.12/x - Step 3: Cross multiply
238,951.71x = 358,342.19 × 78,998.12 - Step 4: Simplify right side
238,951.71x = 28,308,358,780.01 - Step 5: Solve for x
x = 28,308,358,780.01/238,951.71 - Step 6: Final answer
x = 118,468.95
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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.