Finding the Fourth Proportional to 450,069.98, 621,107.39 and 256,473.55
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Solution
The fourth proportional to 450,069.98, 621,107.39 and 256,473.55 is: 353,939.66
Step by Step Solution
- Step 1: Write the proportion equation
450,069.98 : 621,107.39 = 256,473.55 : x - Step 2: Convert to fraction form
450,069.98/621,107.39 = 256,473.55/x - Step 3: Cross multiply
450,069.98x = 621,107.39 × 256,473.55 - Step 4: Simplify right side
450,069.98x = 159,297,617,244.54 - Step 5: Solve for x
x = 159,297,617,244.54/450,069.98 - Step 6: Final answer
x = 353,939.66
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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.