Finding the Fourth Proportional to 276,642.99, 381,308.45 and 195,966.99
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Solution
The fourth proportional to 276,642.99, 381,308.45 and 195,966.99 is: 270,109.39
Step by Step Solution
- Step 1: Write the proportion equation
276,642.99 : 381,308.45 = 195,966.99 : x - Step 2: Convert to fraction form
276,642.99/381,308.45 = 195,966.99/x - Step 3: Cross multiply
276,642.99x = 381,308.45 × 195,966.99 - Step 4: Simplify right side
276,642.99x = 74,723,868,228.23 - Step 5: Solve for x
x = 74,723,868,228.23/276,642.99 - Step 6: Final answer
x = 270,109.39
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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.