Finding the Fourth Proportional to 423,220.74, 634,868.01 and 138,825.99
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Solution
The fourth proportional to 423,220.74, 634,868.01 and 138,825.99 is: 208,251.09
Step by Step Solution
- Step 1: Write the proportion equation
423,220.74 : 634,868.01 = 138,825.99 : x - Step 2: Convert to fraction form
423,220.74/634,868.01 = 138,825.99/x - Step 3: Cross multiply
423,220.74x = 634,868.01 × 138,825.99 - Step 4: Simplify right side
423,220.74x = 88,136,180,007.58 - Step 5: Solve for x
x = 88,136,180,007.58/423,220.74 - Step 6: Final answer
x = 208,251.09
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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.