Finding the Fourth Proportional to 391,062.96, 539,666.85 and 212,214.96
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Solution
The fourth proportional to 391,062.96, 539,666.85 and 212,214.96 is: 292,856.63
Step by Step Solution
- Step 1: Write the proportion equation
391,062.96 : 539,666.85 = 212,214.96 : x - Step 2: Convert to fraction form
391,062.96/539,666.85 = 212,214.96/x - Step 3: Cross multiply
391,062.96x = 539,666.85 × 212,214.96 - Step 4: Simplify right side
391,062.96x = 114,525,378,986.08 - Step 5: Solve for x
x = 114,525,378,986.08/391,062.96 - Step 6: Final answer
x = 292,856.63
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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.