Finding the Fourth Proportional to 391,384.56, 540,101.56 and 230,249.99
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Solution
The fourth proportional to 391,384.56, 540,101.56 and 230,249.99 is: 317,739.60
Step by Step Solution
- Step 1: Write the proportion equation
391,384.56 : 540,101.56 = 230,249.99 : x - Step 2: Convert to fraction form
391,384.56/540,101.56 = 230,249.99/x - Step 3: Cross multiply
391,384.56x = 540,101.56 × 230,249.99 - Step 4: Simplify right side
391,384.56x = 124,358,374,937.23 - Step 5: Solve for x
x = 124,358,374,937.23/391,384.56 - Step 6: Final answer
x = 317,739.60
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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.