Finding the Fourth Proportional to 286,762.90, 430,122.75 and 115,995.46
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Solution
The fourth proportional to 286,762.90, 430,122.75 and 115,995.46 is: 173,984.45
Step by Step Solution
- Step 1: Write the proportion equation
286,762.90 : 430,122.75 = 115,995.46 : x - Step 2: Convert to fraction form
286,762.90/430,122.75 = 115,995.46/x - Step 3: Cross multiply
286,762.90x = 430,122.75 × 115,995.46 - Step 4: Simplify right side
286,762.90x = 49,892,286,242.72 - Step 5: Solve for x
x = 49,892,286,242.72/286,762.90 - Step 6: Final answer
x = 173,984.45
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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.