Finding the Fourth Proportional to 285,220.99, 393,646.49 and 164,338.93
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Solution
The fourth proportional to 285,220.99, 393,646.49 and 164,338.93 is: 226,811.65
Step by Step Solution
- Step 1: Write the proportion equation
285,220.99 : 393,646.49 = 164,338.93 : x - Step 2: Convert to fraction form
285,220.99/393,646.49 = 164,338.93/x - Step 3: Cross multiply
285,220.99x = 393,646.49 × 164,338.93 - Step 4: Simplify right side
285,220.99x = 64,691,442,964.86 - Step 5: Solve for x
x = 64,691,442,964.86/285,220.99 - Step 6: Final answer
x = 226,811.65
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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.