Finding the Fourth Proportional to 251,032.68, 346,412.63 and 142,120.08
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Solution
The fourth proportional to 251,032.68, 346,412.63 and 142,120.08 is: 196,118.65
Step by Step Solution
- Step 1: Write the proportion equation
251,032.68 : 346,412.63 = 142,120.08 : x - Step 2: Convert to fraction form
251,032.68/346,412.63 = 142,120.08/x - Step 3: Cross multiply
251,032.68x = 346,412.63 × 142,120.08 - Step 4: Simplify right side
251,032.68x = 49,232,189,978.01 - Step 5: Solve for x
x = 49,232,189,978.01/251,032.68 - Step 6: Final answer
x = 196,118.65
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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.