Finding the Fourth Proportional to 178,461.20, 246,276.44 and 103,009.70
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Solution
The fourth proportional to 178,461.20, 246,276.44 and 103,009.70 is: 142,153.37
Step by Step Solution
- Step 1: Write the proportion equation
178,461.20 : 246,276.44 = 103,009.70 : x - Step 2: Convert to fraction form
178,461.20/246,276.44 = 103,009.70/x - Step 3: Cross multiply
178,461.20x = 246,276.44 × 103,009.70 - Step 4: Simplify right side
178,461.20x = 25,368,860,455.04 - Step 5: Solve for x
x = 25,368,860,455.04/178,461.20 - Step 6: Final answer
x = 142,153.37
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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.