Finding the Fourth Proportional to 257,167.05, 385,812.17 and 107,323.99
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Solution
The fourth proportional to 257,167.05, 385,812.17 and 107,323.99 is: 161,011.68
Step by Step Solution
- Step 1: Write the proportion equation
257,167.05 : 385,812.17 = 107,323.99 : x - Step 2: Convert to fraction form
257,167.05/385,812.17 = 107,323.99/x - Step 3: Cross multiply
257,167.05x = 385,812.17 × 107,323.99 - Step 4: Simplify right side
257,167.05x = 41,406,899,973.81 - Step 5: Solve for x
x = 41,406,899,973.81/257,167.05 - Step 6: Final answer
x = 161,011.68
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1.5x scale
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.