Finding the Fourth Proportional to 221,694.68, 305,947.16 and 124,937.05
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Solution
The fourth proportional to 221,694.68, 305,947.16 and 124,937.05 is: 172,417.92
Step by Step Solution
- Step 1: Write the proportion equation
221,694.68 : 305,947.16 = 124,937.05 : x - Step 2: Convert to fraction form
221,694.68/305,947.16 = 124,937.05/x - Step 3: Cross multiply
221,694.68x = 305,947.16 × 124,937.05 - Step 4: Simplify right side
221,694.68x = 38,224,135,626.28 - Step 5: Solve for x
x = 38,224,135,626.28/221,694.68 - Step 6: Final answer
x = 172,417.92
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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.