Finding the Fourth Proportional to 298,197.08, 447,142.39 and 87,807.68
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Solution
The fourth proportional to 298,197.08, 447,142.39 and 87,807.68 is: 131,666.39
Step by Step Solution
- Step 1: Write the proportion equation
298,197.08 : 447,142.39 = 87,807.68 : x - Step 2: Convert to fraction form
298,197.08/447,142.39 = 87,807.68/x - Step 3: Cross multiply
298,197.08x = 447,142.39 × 87,807.68 - Step 4: Simplify right side
298,197.08x = 39,262,533,440.32 - Step 5: Solve for x
x = 39,262,533,440.32/298,197.08 - Step 6: Final answer
x = 131,666.39
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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.