Finding the Fourth Proportional to 319,320.28, 440,653.98 and 176,078.20
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Solution
The fourth proportional to 319,320.28, 440,653.98 and 176,078.20 is: 242,983.50
Step by Step Solution
- Step 1: Write the proportion equation
319,320.28 : 440,653.98 = 176,078.20 : x - Step 2: Convert to fraction form
319,320.28/440,653.98 = 176,078.20/x - Step 3: Cross multiply
319,320.28x = 440,653.98 × 176,078.20 - Step 4: Simplify right side
319,320.28x = 77,589,559,621.24 - Step 5: Solve for x
x = 77,589,559,621.24/319,320.28 - Step 6: Final answer
x = 242,983.50
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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.