Finding the Fourth Proportional to 257,177.91, 385,579.95 and 107,461.05
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Solution
The fourth proportional to 257,177.91, 385,579.95 and 107,461.05 is: 161,113.47
Step by Step Solution
- Step 1: Write the proportion equation
257,177.91 : 385,579.95 = 107,461.05 : x - Step 2: Convert to fraction form
257,177.91/385,579.95 = 107,461.05/x - Step 3: Cross multiply
257,177.91x = 385,579.95 × 107,461.05 - Step 4: Simplify right side
257,177.91x = 41,434,826,285.95 - Step 5: Solve for x
x = 41,434,826,285.95/257,177.91 - Step 6: Final answer
x = 161,113.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.