Finding the Fourth Proportional to 400,969.99, 553,338.58 and 219,688.80
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Solution
The fourth proportional to 400,969.99, 553,338.58 and 219,688.80 is: 303,170.54
Step by Step Solution
- Step 1: Write the proportion equation
400,969.99 : 553,338.58 = 219,688.80 : x - Step 2: Convert to fraction form
400,969.99/553,338.58 = 219,688.80/x - Step 3: Cross multiply
400,969.99x = 553,338.58 × 219,688.80 - Step 4: Simplify right side
400,969.99x = 121,562,288,633.90 - Step 5: Solve for x
x = 121,562,288,633.90/400,969.99 - Step 6: Final answer
x = 303,170.54
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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.