Finding the Fourth Proportional to 283,280.75, 390,955.67 and 211,536.21
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Solution
The fourth proportional to 283,280.75, 390,955.67 and 211,536.21 is: 291,941.06
Step by Step Solution
- Step 1: Write the proportion equation
283,280.75 : 390,955.67 = 211,536.21 : x - Step 2: Convert to fraction form
283,280.75/390,955.67 = 211,536.21/x - Step 3: Cross multiply
283,280.75x = 390,955.67 × 211,536.21 - Step 4: Simplify right side
283,280.75x = 82,701,279,652.13 - Step 5: Solve for x
x = 82,701,279,652.13/283,280.75 - Step 6: Final answer
x = 291,941.06
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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.