Finding the Fourth Proportional to 238,952.21, 358,342.94 and 78,998.62
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Solution
The fourth proportional to 238,952.21, 358,342.94 and 78,998.62 is: 118,469.70
Step by Step Solution
- Step 1: Write the proportion equation
238,952.21 : 358,342.94 = 78,998.62 : x - Step 2: Convert to fraction form
238,952.21/358,342.94 = 78,998.62/x - Step 3: Cross multiply
238,952.21x = 358,342.94 × 78,998.62 - Step 4: Simplify right side
238,952.21x = 28,308,597,746.74 - Step 5: Solve for x
x = 28,308,597,746.74/238,952.21 - Step 6: Final answer
x = 118,469.70
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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.