Finding the Fourth Proportional to 243,310.86, 335,730.69 and 135,875.70
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Solution
The fourth proportional to 243,310.86, 335,730.69 and 135,875.70 is: 187,487.08
Step by Step Solution
- Step 1: Write the proportion equation
243,310.86 : 335,730.69 = 135,875.70 : x - Step 2: Convert to fraction form
243,310.86/335,730.69 = 135,875.70/x - Step 3: Cross multiply
243,310.86x = 335,730.69 × 135,875.70 - Step 4: Simplify right side
243,310.86x = 45,617,642,515.23 - Step 5: Solve for x
x = 45,617,642,515.23/243,310.86 - Step 6: Final answer
x = 187,487.08
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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.