Finding the Fourth Proportional to 152,412.22, 210,326.60 and 84,428.99
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Solution
The fourth proportional to 152,412.22, 210,326.60 and 84,428.99 is: 116,510.75
Step by Step Solution
- Step 1: Write the proportion equation
152,412.22 : 210,326.60 = 84,428.99 : x - Step 2: Convert to fraction form
152,412.22/210,326.60 = 84,428.99/x - Step 3: Cross multiply
152,412.22x = 210,326.60 × 84,428.99 - Step 4: Simplify right side
152,412.22x = 17,757,661,985.99 - Step 5: Solve for x
x = 17,757,661,985.99/152,412.22 - Step 6: Final answer
x = 116,510.75
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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.