Finding the Fourth Proportional to 185,445.99, 255,917.07 and 100,563.06
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Solution
The fourth proportional to 185,445.99, 255,917.07 and 100,563.06 is: 138,777.89
Step by Step Solution
- Step 1: Write the proportion equation
185,445.99 : 255,917.07 = 100,563.06 : x - Step 2: Convert to fraction form
185,445.99/255,917.07 = 100,563.06/x - Step 3: Cross multiply
185,445.99x = 255,917.07 × 100,563.06 - Step 4: Simplify right side
185,445.99x = 25,735,803,665.43 - Step 5: Solve for x
x = 25,735,803,665.43/185,445.99 - Step 6: Final answer
x = 138,777.89
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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.