Finding the Fourth Proportional to 220,631.68, 304,472.10 and 120,029.68
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Solution
The fourth proportional to 220,631.68, 304,472.10 and 120,029.68 is: 165,641.17
Step by Step Solution
- Step 1: Write the proportion equation
220,631.68 : 304,472.10 = 120,029.68 : x - Step 2: Convert to fraction form
220,631.68/304,472.10 = 120,029.68/x - Step 3: Cross multiply
220,631.68x = 304,472.10 × 120,029.68 - Step 4: Simplify right side
220,631.68x = 36,545,688,731.93 - Step 5: Solve for x
x = 36,545,688,731.93/220,631.68 - Step 6: Final answer
x = 165,641.17
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1.5x scale
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.