Finding the Fourth Proportional to 427,242.51, 641,248.97 and 227,729.07
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Solution
The fourth proportional to 427,242.51, 641,248.97 and 227,729.07 is: 341,798.92
Step by Step Solution
- Step 1: Write the proportion equation
427,242.51 : 641,248.97 = 227,729.07 : x - Step 2: Convert to fraction form
427,242.51/641,248.97 = 227,729.07/x - Step 3: Cross multiply
427,242.51x = 641,248.97 × 227,729.07 - Step 4: Simplify right side
427,242.51x = 146,031,030,437.91 - Step 5: Solve for x
x = 146,031,030,437.91/427,242.51 - Step 6: Final answer
x = 341,798.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.