Finding the Fourth Proportional to 185,383.62, 255,693.51 and 121,698.18
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Solution
The fourth proportional to 185,383.62, 255,693.51 and 121,698.18 is: 167,854.28
Step by Step Solution
- Step 1: Write the proportion equation
185,383.62 : 255,693.51 = 121,698.18 : x - Step 2: Convert to fraction form
185,383.62/255,693.51 = 121,698.18/x - Step 3: Cross multiply
185,383.62x = 255,693.51 × 121,698.18 - Step 4: Simplify right side
185,383.62x = 31,117,434,804.81 - Step 5: Solve for x
x = 31,117,434,804.81/185,383.62 - Step 6: Final answer
x = 167,854.28
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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.