Finding the Fourth Proportional to 454,319.40, 681,454.44 and 138,751.68
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Solution
The fourth proportional to 454,319.40, 681,454.44 and 138,751.68 is: 208,119.99
Step by Step Solution
- Step 1: Write the proportion equation
454,319.40 : 681,454.44 = 138,751.68 : x - Step 2: Convert to fraction form
454,319.40/681,454.44 = 138,751.68/x - Step 3: Cross multiply
454,319.40x = 681,454.44 × 138,751.68 - Step 4: Simplify right side
454,319.40x = 94,552,948,393.46 - Step 5: Solve for x
x = 94,552,948,393.46/454,319.40 - Step 6: Final answer
x = 208,119.99
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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.