Finding the Fourth Proportional to 319,029.05, 440,279.70 and 175,789.06
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Solution
The fourth proportional to 319,029.05, 440,279.70 and 175,789.06 is: 242,599.70
Step by Step Solution
- Step 1: Write the proportion equation
319,029.05 : 440,279.70 = 175,789.06 : x - Step 2: Convert to fraction form
319,029.05/440,279.70 = 175,789.06/x - Step 3: Cross multiply
319,029.05x = 440,279.70 × 175,789.06 - Step 4: Simplify right side
319,029.05x = 77,396,352,398.68 - Step 5: Solve for x
x = 77,396,352,398.68/319,029.05 - Step 6: Final answer
x = 242,599.70
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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.