Finding the Fourth Proportional to 174,201.12, 240,139.80 and 135,917.28
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Solution
The fourth proportional to 174,201.12, 240,139.80 and 135,917.28 is: 187,364.75
Step by Step Solution
- Step 1: Write the proportion equation
174,201.12 : 240,139.80 = 135,917.28 : x - Step 2: Convert to fraction form
174,201.12/240,139.80 = 135,917.28/x - Step 3: Cross multiply
174,201.12x = 240,139.80 × 135,917.28 - Step 4: Simplify right side
174,201.12x = 32,639,148,435.74 - Step 5: Solve for x
x = 32,639,148,435.74/174,201.12 - Step 6: Final answer
x = 187,364.75
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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.