Finding the Fourth Proportional to 223,103.02, 307,879.95 and 121,129.42
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Solution
The fourth proportional to 223,103.02, 307,879.95 and 121,129.42 is: 167,157.40
Step by Step Solution
- Step 1: Write the proportion equation
223,103.02 : 307,879.95 = 121,129.42 : x - Step 2: Convert to fraction form
223,103.02/307,879.95 = 121,129.42/x - Step 3: Cross multiply
223,103.02x = 307,879.95 × 121,129.42 - Step 4: Simplify right side
223,103.02x = 37,293,319,773.13 - Step 5: Solve for x
x = 37,293,319,773.13/223,103.02 - Step 6: Final answer
x = 167,157.40
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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.