Finding the Fourth Proportional to 400,310.04, 552,795.18 and 257,319.12
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Solution
The fourth proportional to 400,310.04, 552,795.18 and 257,319.12 is: 355,336.50
Step by Step Solution
- Step 1: Write the proportion equation
400,310.04 : 552,795.18 = 257,319.12 : x - Step 2: Convert to fraction form
400,310.04/552,795.18 = 257,319.12/x - Step 3: Cross multiply
400,310.04x = 552,795.18 × 257,319.12 - Step 4: Simplify right side
400,310.04x = 142,244,769,257.84 - Step 5: Solve for x
x = 142,244,769,257.84/400,310.04 - Step 6: Final answer
x = 355,336.50
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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.