Finding the Fourth Proportional to 339,277.20, 508,915.80 and 310,246.80
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Solution
The fourth proportional to 339,277.20, 508,915.80 and 310,246.80 is: 465,370.20
Step by Step Solution
- Step 1: Write the proportion equation
339,277.20 : 508,915.80 = 310,246.80 : x - Step 2: Convert to fraction form
339,277.20/508,915.80 = 310,246.80/x - Step 3: Cross multiply
339,277.20x = 508,915.80 × 310,246.80 - Step 4: Simplify right side
339,277.20x = 157,889,498,419.44 - Step 5: Solve for x
x = 157,889,498,419.44/339,277.20 - Step 6: Final answer
x = 465,370.20
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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.