Finding the Fourth Proportional to 286,629.80, 394,645.62 and 260,057.74
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Solution
The fourth proportional to 286,629.80, 394,645.62 and 260,057.74 is: 358,059.94
Step by Step Solution
- Step 1: Write the proportion equation
286,629.80 : 394,645.62 = 260,057.74 : x - Step 2: Convert to fraction form
286,629.80/394,645.62 = 260,057.74/x - Step 3: Cross multiply
286,629.80x = 394,645.62 × 260,057.74 - Step 4: Simplify right side
286,629.80x = 102,630,648,038.10 - Step 5: Solve for x
x = 102,630,648,038.10/286,629.80 - Step 6: Final answer
x = 358,059.94
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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.