Finding the Fourth Proportional to 422,908.16, 634,177.92 and 142,350.08
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Solution
The fourth proportional to 422,908.16, 634,177.92 and 142,350.08 is: 213,463.08
Step by Step Solution
- Step 1: Write the proportion equation
422,908.16 : 634,177.92 = 142,350.08 : x - Step 2: Convert to fraction form
422,908.16/634,177.92 = 142,350.08/x - Step 3: Cross multiply
422,908.16x = 634,177.92 × 142,350.08 - Step 4: Simplify right side
422,908.16x = 90,275,277,646.23 - Step 5: Solve for x
x = 90,275,277,646.23/422,908.16 - Step 6: Final answer
x = 213,463.08
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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.