Finding the Fourth Proportional to 402,736.96, 555,789.10 and 221,439.52
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Solution
The fourth proportional to 402,736.96, 555,789.10 and 221,439.52 is: 305,593.19
Step by Step Solution
- Step 1: Write the proportion equation
402,736.96 : 555,789.10 = 221,439.52 : x - Step 2: Convert to fraction form
402,736.96/555,789.10 = 221,439.52/x - Step 3: Cross multiply
402,736.96x = 555,789.10 × 221,439.52 - Step 4: Simplify right side
402,736.96x = 123,073,671,525.23 - Step 5: Solve for x
x = 123,073,671,525.23/402,736.96 - Step 6: Final answer
x = 305,593.19
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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.