Finding the Fourth Proportional to 245,099.12, 338,197.14 and 153,207.65
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Solution
The fourth proportional to 245,099.12, 338,197.14 and 153,207.65 is: 211,401.78
Step by Step Solution
- Step 1: Write the proportion equation
245,099.12 : 338,197.14 = 153,207.65 : x - Step 2: Convert to fraction form
245,099.12/338,197.14 = 153,207.65/x - Step 3: Cross multiply
245,099.12x = 338,197.14 × 153,207.65 - Step 4: Simplify right side
245,099.12x = 51,814,389,901.61 - Step 5: Solve for x
x = 51,814,389,901.61/245,099.12 - Step 6: Final answer
x = 211,401.78
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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.