Finding the Fourth Proportional to 208,089.20, 312,133.80 and 74,973.80
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Solution
The fourth proportional to 208,089.20, 312,133.80 and 74,973.80 is: 112,460.70
Step by Step Solution
- Step 1: Write the proportion equation
208,089.20 : 312,133.80 = 74,973.80 : x - Step 2: Convert to fraction form
208,089.20/312,133.80 = 74,973.80/x - Step 3: Cross multiply
208,089.20x = 312,133.80 × 74,973.80 - Step 4: Simplify right side
208,089.20x = 23,401,857,094.44 - Step 5: Solve for x
x = 23,401,857,094.44/208,089.20 - Step 6: Final answer
x = 112,460.70
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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.