Finding the Fourth Proportional to 310,016.16, 465,026.74 and 85,388.99
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Solution
The fourth proportional to 310,016.16, 465,026.74 and 85,388.99 is: 128,084.17
Step by Step Solution
- Step 1: Write the proportion equation
310,016.16 : 465,026.74 = 85,388.99 : x - Step 2: Convert to fraction form
310,016.16/465,026.74 = 85,388.99/x - Step 3: Cross multiply
310,016.16x = 465,026.74 × 85,388.99 - Step 4: Simplify right side
310,016.16x = 39,708,161,112.99 - Step 5: Solve for x
x = 39,708,161,112.99/310,016.16 - Step 6: Final answer
x = 128,084.17
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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.