Finding the Fourth Proportional to 228,128.68, 314,816.98 and 124,762.92
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Solution
The fourth proportional to 228,128.68, 314,816.98 and 124,762.92 is: 172,172.50
Step by Step Solution
- Step 1: Write the proportion equation
228,128.68 : 314,816.98 = 124,762.92 : x - Step 2: Convert to fraction form
228,128.68/314,816.98 = 124,762.92/x - Step 3: Cross multiply
228,128.68x = 314,816.98 × 124,762.92 - Step 4: Simplify right side
228,128.68x = 39,277,485,690.38 - Step 5: Solve for x
x = 39,277,485,690.38/228,128.68 - Step 6: Final answer
x = 172,172.50
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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.