Finding the Fourth Proportional to 319,134.68, 440,431.18 and 175,920.20
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Solution
The fourth proportional to 319,134.68, 440,431.18 and 175,920.20 is: 242,783.83
Step by Step Solution
- Step 1: Write the proportion equation
319,134.68 : 440,431.18 = 175,920.20 : x - Step 2: Convert to fraction form
319,134.68/440,431.18 = 175,920.20/x - Step 3: Cross multiply
319,134.68x = 440,431.18 × 175,920.20 - Step 4: Simplify right side
319,134.68x = 77,480,741,271.84 - Step 5: Solve for x
x = 77,480,741,271.84/319,134.68 - Step 6: Final answer
x = 242,783.83
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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.