Finding the Fourth Proportional to 155,259.40, 232,889.10 and 102,115.30
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Solution
The fourth proportional to 155,259.40, 232,889.10 and 102,115.30 is: 153,172.95
Step by Step Solution
- Step 1: Write the proportion equation
155,259.40 : 232,889.10 = 102,115.30 : x - Step 2: Convert to fraction form
155,259.40/232,889.10 = 102,115.30/x - Step 3: Cross multiply
155,259.40x = 232,889.10 × 102,115.30 - Step 4: Simplify right side
155,259.40x = 23,781,540,313.23 - Step 5: Solve for x
x = 23,781,540,313.23/155,259.40 - Step 6: Final answer
x = 153,172.95
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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.