Finding the Fourth Proportional to 286,911.22, 430,366.11 and 87,230.74
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Solution
The fourth proportional to 286,911.22, 430,366.11 and 87,230.74 is: 130,845.89
Step by Step Solution
- Step 1: Write the proportion equation
286,911.22 : 430,366.11 = 87,230.74 : x - Step 2: Convert to fraction form
286,911.22/430,366.11 = 87,230.74/x - Step 3: Cross multiply
286,911.22x = 430,366.11 × 87,230.74 - Step 4: Simplify right side
286,911.22x = 37,541,154,246.22 - Step 5: Solve for x
x = 37,541,154,246.22/286,911.22 - Step 6: Final answer
x = 130,845.89
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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.