Finding the Fourth Proportional to 279,135.76, 418,545.08 and 190,496.65
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Solution
The fourth proportional to 279,135.76, 418,545.08 and 190,496.65 is: 285,636.76
Step by Step Solution
- Step 1: Write the proportion equation
279,135.76 : 418,545.08 = 190,496.65 : x - Step 2: Convert to fraction form
279,135.76/418,545.08 = 190,496.65/x - Step 3: Cross multiply
279,135.76x = 418,545.08 × 190,496.65 - Step 4: Simplify right side
279,135.76x = 79,731,432,568.77 - Step 5: Solve for x
x = 79,731,432,568.77/279,135.76 - Step 6: Final answer
x = 285,636.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.