Finding the Fourth Proportional to 338,813.04, 508,137.36 and 114,115.44
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Solution
The fourth proportional to 338,813.04, 508,137.36 and 114,115.44 is: 171,145.47
Step by Step Solution
- Step 1: Write the proportion equation
338,813.04 : 508,137.36 = 114,115.44 : x - Step 2: Convert to fraction form
338,813.04/508,137.36 = 114,115.44/x - Step 3: Cross multiply
338,813.04x = 508,137.36 × 114,115.44 - Step 4: Simplify right side
338,813.04x = 57,986,318,416.84 - Step 5: Solve for x
x = 57,986,318,416.84/338,813.04 - Step 6: Final answer
x = 171,145.47
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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.