Finding the Fourth Proportional to 402,415.11, 555,552.14 and 281,925.99
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Solution
The fourth proportional to 402,415.11, 555,552.14 and 281,925.99 is: 389,211.49
Step by Step Solution
- Step 1: Write the proportion equation
402,415.11 : 555,552.14 = 281,925.99 : x - Step 2: Convert to fraction form
402,415.11/555,552.14 = 281,925.99/x - Step 3: Cross multiply
402,415.11x = 555,552.14 × 281,925.99 - Step 4: Simplify right side
402,415.11x = 156,624,585,656.49 - Step 5: Solve for x
x = 156,624,585,656.49/402,415.11 - Step 6: Final answer
x = 389,211.49
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1.5x scale
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.