Finding the Fourth Proportional to 438,313.96, 657,355.74 and 157,778.92
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Solution
The fourth proportional to 438,313.96, 657,355.74 and 157,778.92 is: 236,626.91
Step by Step Solution
- Step 1: Write the proportion equation
438,313.96 : 657,355.74 = 157,778.92 : x - Step 2: Convert to fraction form
438,313.96/657,355.74 = 157,778.92/x - Step 3: Cross multiply
438,313.96x = 657,355.74 × 157,778.92 - Step 4: Simplify right side
438,313.96x = 103,716,878,713.00 - Step 5: Solve for x
x = 103,716,878,713.00/438,313.96 - Step 6: Final answer
x = 236,626.91
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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.