Finding the Fourth Proportional to 229,201.44, 316,303.44 and 128,606.88
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Solution
The fourth proportional to 229,201.44, 316,303.44 and 128,606.88 is: 177,480.55
Step by Step Solution
- Step 1: Write the proportion equation
229,201.44 : 316,303.44 = 128,606.88 : x - Step 2: Convert to fraction form
229,201.44/316,303.44 = 128,606.88/x - Step 3: Cross multiply
229,201.44x = 316,303.44 × 128,606.88 - Step 4: Simplify right side
229,201.44x = 40,678,798,551.67 - Step 5: Solve for x
x = 40,678,798,551.67/229,201.44 - Step 6: Final answer
x = 177,480.55
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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.