Finding the Fourth Proportional to 280,501.55, 387,125.36 and 157,997.96
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Solution
The fourth proportional to 280,501.55, 387,125.36 and 157,997.96 is: 218,055.90
Step by Step Solution
- Step 1: Write the proportion equation
280,501.55 : 387,125.36 = 157,997.96 : x - Step 2: Convert to fraction form
280,501.55/387,125.36 = 157,997.96/x - Step 3: Cross multiply
280,501.55x = 387,125.36 × 157,997.96 - Step 4: Simplify right side
280,501.55x = 61,165,017,144.27 - Step 5: Solve for x
x = 61,165,017,144.27/280,501.55 - Step 6: Final answer
x = 218,055.90
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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.