Finding the Fourth Proportional to 276,357.70, 413,552.40 and 191,720.80
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Solution
The fourth proportional to 276,357.70, 413,552.40 and 191,720.80 is: 286,898.45
Step by Step Solution
- Step 1: Write the proportion equation
276,357.70 : 413,552.40 = 191,720.80 : x - Step 2: Convert to fraction form
276,357.70/413,552.40 = 191,720.80/x - Step 3: Cross multiply
276,357.70x = 413,552.40 × 191,720.80 - Step 4: Simplify right side
276,357.70x = 79,286,596,969.92 - Step 5: Solve for x
x = 79,286,596,969.92/276,357.70 - Step 6: Final answer
x = 286,898.45
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1.5x scale
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.