Finding the Fourth Proportional to 276,947.11, 415,490.70 and 77,267.41
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Solution
The fourth proportional to 276,947.11, 415,490.70 and 77,267.41 is: 115,920.65
Step by Step Solution
- Step 1: Write the proportion equation
276,947.11 : 415,490.70 = 77,267.41 : x - Step 2: Convert to fraction form
276,947.11/415,490.70 = 77,267.41/x - Step 3: Cross multiply
276,947.11x = 415,490.70 × 77,267.41 - Step 4: Simplify right side
276,947.11x = 32,103,890,268.09 - Step 5: Solve for x
x = 32,103,890,268.09/276,947.11 - Step 6: Final answer
x = 115,920.65
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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.