Finding the Fourth Proportional to 257,167.12, 385,812.24 and 107,324.08
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Solution
The fourth proportional to 257,167.12, 385,812.24 and 107,324.08 is: 161,011.81
Step by Step Solution
- Step 1: Write the proportion equation
257,167.12 : 385,812.24 = 107,324.08 : x - Step 2: Convert to fraction form
257,167.12/385,812.24 = 107,324.08/x - Step 3: Cross multiply
257,167.12x = 385,812.24 × 107,324.08 - Step 4: Simplify right side
257,167.12x = 41,406,943,710.74 - Step 5: Solve for x
x = 41,406,943,710.74/257,167.12 - Step 6: Final answer
x = 161,011.81
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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.