Finding the Fourth Proportional to 305,848.99, 421,901.58 and 284,199.58
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Solution
The fourth proportional to 305,848.99, 421,901.58 and 284,199.58 is: 392,037.43
Step by Step Solution
- Step 1: Write the proportion equation
305,848.99 : 421,901.58 = 284,199.58 : x - Step 2: Convert to fraction form
305,848.99/421,901.58 = 284,199.58/x - Step 3: Cross multiply
305,848.99x = 421,901.58 × 284,199.58 - Step 4: Simplify right side
305,848.99x = 119,904,251,837.34 - Step 5: Solve for x
x = 119,904,251,837.34/305,848.99 - Step 6: Final answer
x = 392,037.43
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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.