Finding the Fourth Proportional to 170,802.24, 256,359.60 and 86,620.50
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Solution
The fourth proportional to 170,802.24, 256,359.60 and 86,620.50 is: 130,009.99
Step by Step Solution
- Step 1: Write the proportion equation
170,802.24 : 256,359.60 = 86,620.50 : x - Step 2: Convert to fraction form
170,802.24/256,359.60 = 86,620.50/x - Step 3: Cross multiply
170,802.24x = 256,359.60 × 86,620.50 - Step 4: Simplify right side
170,802.24x = 22,205,996,731.80 - Step 5: Solve for x
x = 22,205,996,731.80/170,802.24 - Step 6: Final answer
x = 130,009.99
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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.