Finding the Fourth Proportional to 313,142.18, 432,134.80 and 169,901.88
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Solution
The fourth proportional to 313,142.18, 432,134.80 and 169,901.88 is: 234,463.83
Step by Step Solution
- Step 1: Write the proportion equation
313,142.18 : 432,134.80 = 169,901.88 : x - Step 2: Convert to fraction form
313,142.18/432,134.80 = 169,901.88/x - Step 3: Cross multiply
313,142.18x = 432,134.80 × 169,901.88 - Step 4: Simplify right side
313,142.18x = 73,420,514,103.54 - Step 5: Solve for x
x = 73,420,514,103.54/313,142.18 - Step 6: Final answer
x = 234,463.83
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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.