Finding the Fourth Proportional to 312,484.05, 431,254.56 and 176,542.98
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Solution
The fourth proportional to 312,484.05, 431,254.56 and 176,542.98 is: 243,644.32
Step by Step Solution
- Step 1: Write the proportion equation
312,484.05 : 431,254.56 = 176,542.98 : x - Step 2: Convert to fraction form
312,484.05/431,254.56 = 176,542.98/x - Step 3: Cross multiply
312,484.05x = 431,254.56 × 176,542.98 - Step 4: Simplify right side
312,484.05x = 76,134,965,160.99 - Step 5: Solve for x
x = 76,134,965,160.99/312,484.05 - Step 6: Final answer
x = 243,644.32
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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.