Finding the Fourth Proportional to 256,798.99, 384,989.70 and 107,150.74
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Solution
The fourth proportional to 256,798.99, 384,989.70 and 107,150.74 is: 160,638.99
Step by Step Solution
- Step 1: Write the proportion equation
256,798.99 : 384,989.70 = 107,150.74 : x - Step 2: Convert to fraction form
256,798.99/384,989.70 = 107,150.74/x - Step 3: Cross multiply
256,798.99x = 384,989.70 × 107,150.74 - Step 4: Simplify right side
256,798.99x = 41,251,931,247.38 - Step 5: Solve for x
x = 41,251,931,247.38/256,798.99 - Step 6: Final answer
x = 160,638.99
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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.