Finding the Fourth Proportional to 185,820.19, 256,467.80 and 121,177.19
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Solution
The fourth proportional to 185,820.19, 256,467.80 and 121,177.19 is: 167,247.96
Step by Step Solution
- Step 1: Write the proportion equation
185,820.19 : 256,467.80 = 121,177.19 : x - Step 2: Convert to fraction form
185,820.19/256,467.80 = 121,177.19/x - Step 3: Cross multiply
185,820.19x = 256,467.80 × 121,177.19 - Step 4: Simplify right side
185,820.19x = 31,078,046,723.60 - Step 5: Solve for x
x = 31,078,046,723.60/185,820.19 - Step 6: Final answer
x = 167,247.96
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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.