Finding the Fourth Proportional to 319,120.05, 440,384.34 and 175,879.76
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Solution
The fourth proportional to 319,120.05, 440,384.34 and 175,879.76 is: 242,713.33
Step by Step Solution
- Step 1: Write the proportion equation
319,120.05 : 440,384.34 = 175,879.76 : x - Step 2: Convert to fraction form
319,120.05/440,384.34 = 175,879.76/x - Step 3: Cross multiply
319,120.05x = 440,384.34 × 175,879.76 - Step 4: Simplify right side
319,120.05x = 77,454,690,484.59 - Step 5: Solve for x
x = 77,454,690,484.59/319,120.05 - Step 6: Final answer
x = 242,713.33
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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.