Finding the Fourth Proportional to 318,539.47, 477,248.69 and 299,575.75
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Solution
The fourth proportional to 318,539.47, 477,248.69 and 299,575.75 is: 448,836.48
Step by Step Solution
- Step 1: Write the proportion equation
318,539.47 : 477,248.69 = 299,575.75 : x - Step 2: Convert to fraction form
318,539.47/477,248.69 = 299,575.75/x - Step 3: Cross multiply
318,539.47x = 477,248.69 × 299,575.75 - Step 4: Simplify right side
318,539.47x = 142,972,134,243.27 - Step 5: Solve for x
x = 142,972,134,243.27/318,539.47 - Step 6: Final answer
x = 448,836.48
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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.