Finding the Fourth Proportional to 279,408.07, 420,978.99 and 252,787.84
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Solution
The fourth proportional to 279,408.07, 420,978.99 and 252,787.84 is: 380,870.78
Step by Step Solution
- Step 1: Write the proportion equation
279,408.07 : 420,978.99 = 252,787.84 : x - Step 2: Convert to fraction form
279,408.07/420,978.99 = 252,787.84/x - Step 3: Cross multiply
279,408.07x = 420,978.99 × 252,787.84 - Step 4: Simplify right side
279,408.07x = 106,418,369,567.48 - Step 5: Solve for x
x = 106,418,369,567.48/279,408.07 - Step 6: Final answer
x = 380,870.78
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.