Finding the Fourth Proportional to 422,962.02, 634,574.66 and 138,654.99
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Solution
The fourth proportional to 422,962.02, 634,574.66 and 138,654.99 is: 208,025.63
Step by Step Solution
- Step 1: Write the proportion equation
422,962.02 : 634,574.66 = 138,654.99 : x - Step 2: Convert to fraction form
422,962.02/634,574.66 = 138,654.99/x - Step 3: Cross multiply
422,962.02x = 634,574.66 × 138,654.99 - Step 4: Simplify right side
422,962.02x = 87,986,942,443.28 - Step 5: Solve for x
x = 87,986,942,443.28/422,962.02 - Step 6: Final answer
x = 208,025.63
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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.