Finding the Fourth Proportional to 186,909.28, 257,931.50 and 106,335.08
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Solution
The fourth proportional to 186,909.28, 257,931.50 and 106,335.08 is: 146,740.53
Step by Step Solution
- Step 1: Write the proportion equation
186,909.28 : 257,931.50 = 106,335.08 : x - Step 2: Convert to fraction form
186,909.28/257,931.50 = 106,335.08/x - Step 3: Cross multiply
186,909.28x = 257,931.50 × 106,335.08 - Step 4: Simplify right side
186,909.28x = 27,427,166,687.02 - Step 5: Solve for x
x = 27,427,166,687.02/186,909.28 - Step 6: Final answer
x = 146,740.53
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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.