Finding the Fourth Proportional to 153,201.76, 229,678.68 and 68,900.20
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Solution
The fourth proportional to 153,201.76, 229,678.68 and 68,900.20 is: 103,294.55
Step by Step Solution
- Step 1: Write the proportion equation
153,201.76 : 229,678.68 = 68,900.20 : x - Step 2: Convert to fraction form
153,201.76/229,678.68 = 68,900.20/x - Step 3: Cross multiply
153,201.76x = 229,678.68 × 68,900.20 - Step 4: Simplify right side
153,201.76x = 15,824,906,987.74 - Step 5: Solve for x
x = 15,824,906,987.74/153,201.76 - Step 6: Final answer
x = 103,294.55
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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.