Finding the Fourth Proportional to 391,313.46, 539,761.64 and 268,746.68
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Solution
The fourth proportional to 391,313.46, 539,761.64 and 268,746.68 is: 370,698.08
Step by Step Solution
- Step 1: Write the proportion equation
391,313.46 : 539,761.64 = 268,746.68 : x - Step 2: Convert to fraction form
391,313.46/539,761.64 = 268,746.68/x - Step 3: Cross multiply
391,313.46x = 539,761.64 × 268,746.68 - Step 4: Simplify right side
391,313.46x = 145,059,148,741.36 - Step 5: Solve for x
x = 145,059,148,741.36/391,313.46 - Step 6: Final answer
x = 370,698.08
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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.