Finding the Fourth Proportional to 457,476.96, 631,317.60 and 256,272.96
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Solution
The fourth proportional to 457,476.96, 631,317.60 and 256,272.96 is: 353,656.35
Step by Step Solution
- Step 1: Write the proportion equation
457,476.96 : 631,317.60 = 256,272.96 : x - Step 2: Convert to fraction form
457,476.96/631,317.60 = 256,272.96/x - Step 3: Cross multiply
457,476.96x = 631,317.60 × 256,272.96 - Step 4: Simplify right side
457,476.96x = 161,789,630,052.10 - Step 5: Solve for x
x = 161,789,630,052.10/457,476.96 - Step 6: Final answer
x = 353,656.35
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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.