Finding the Fourth Proportional to 186,841.60, 257,847.06 and 106,280.62
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Solution
The fourth proportional to 186,841.60, 257,847.06 and 106,280.62 is: 146,670.47
Step by Step Solution
- Step 1: Write the proportion equation
186,841.60 : 257,847.06 = 106,280.62 : x - Step 2: Convert to fraction form
186,841.60/257,847.06 = 106,280.62/x - Step 3: Cross multiply
186,841.60x = 257,847.06 × 106,280.62 - Step 4: Simplify right side
186,841.60x = 27,404,145,401.98 - Step 5: Solve for x
x = 27,404,145,401.98/186,841.60 - Step 6: Final answer
x = 146,670.47
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1.5x scale
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.