Finding the Fourth Proportional to 331,154.68, 456,980.76 and 187,906.18
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Solution
The fourth proportional to 331,154.68, 456,980.76 and 187,906.18 is: 259,303.32
Step by Step Solution
- Step 1: Write the proportion equation
331,154.68 : 456,980.76 = 187,906.18 : x - Step 2: Convert to fraction form
331,154.68/456,980.76 = 187,906.18/x - Step 3: Cross multiply
331,154.68x = 456,980.76 × 187,906.18 - Step 4: Simplify right side
331,154.68x = 85,869,508,945.10 - Step 5: Solve for x
x = 85,869,508,945.10/331,154.68 - Step 6: Final answer
x = 259,303.32
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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.