Finding the Fourth Proportional to 186,913.74, 257,931.96 and 106,333.70
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Solution
The fourth proportional to 186,913.74, 257,931.96 and 106,333.70 is: 146,735.39
Step by Step Solution
- Step 1: Write the proportion equation
186,913.74 : 257,931.96 = 106,333.70 : x - Step 2: Convert to fraction form
186,913.74/257,931.96 = 106,333.70/x - Step 3: Cross multiply
186,913.74x = 257,931.96 × 106,333.70 - Step 4: Simplify right side
186,913.74x = 27,426,859,655.05 - Step 5: Solve for x
x = 27,426,859,655.05/186,913.74 - Step 6: Final answer
x = 146,735.39
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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.