Finding the Fourth Proportional to 331,930.83, 497,895.48 and 142,268.21
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Solution
The fourth proportional to 331,930.83, 497,895.48 and 142,268.21 is: 213,401.99
Step by Step Solution
- Step 1: Write the proportion equation
331,930.83 : 497,895.48 = 142,268.21 : x - Step 2: Convert to fraction form
331,930.83/497,895.48 = 142,268.21/x - Step 3: Cross multiply
331,930.83x = 497,895.48 × 142,268.21 - Step 4: Simplify right side
331,930.83x = 70,834,699,595.76 - Step 5: Solve for x
x = 70,834,699,595.76/331,930.83 - Step 6: Final answer
x = 213,401.99
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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.