Finding the Fourth Proportional to 283,119.29, 390,688.38 and 155,794.88
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Solution
The fourth proportional to 283,119.29, 390,688.38 and 155,794.88 is: 214,988.00
Step by Step Solution
- Step 1: Write the proportion equation
283,119.29 : 390,688.38 = 155,794.88 : x - Step 2: Convert to fraction form
283,119.29/390,688.38 = 155,794.88/x - Step 3: Cross multiply
283,119.29x = 390,688.38 × 155,794.88 - Step 4: Simplify right side
283,119.29x = 60,867,250,256.22 - Step 5: Solve for x
x = 60,867,250,256.22/283,119.29 - Step 6: Final answer
x = 214,988.00
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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.