Finding the Fourth Proportional to 223,102.36, 307,767.18 and 142,445.08
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Solution
The fourth proportional to 223,102.36, 307,767.18 and 142,445.08 is: 196,501.38
Step by Step Solution
- Step 1: Write the proportion equation
223,102.36 : 307,767.18 = 142,445.08 : x - Step 2: Convert to fraction form
223,102.36/307,767.18 = 142,445.08/x - Step 3: Cross multiply
223,102.36x = 307,767.18 × 142,445.08 - Step 4: Simplify right side
223,102.36x = 43,839,920,576.47 - Step 5: Solve for x
x = 43,839,920,576.47/223,102.36 - Step 6: Final answer
x = 196,501.38
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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.