Finding the Fourth Proportional to 399,988.46, 552,122.99 and 230,290.22
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Solution
The fourth proportional to 399,988.46, 552,122.99 and 230,290.22 is: 317,880.48
Step by Step Solution
- Step 1: Write the proportion equation
399,988.46 : 552,122.99 = 230,290.22 : x - Step 2: Convert to fraction form
399,988.46/552,122.99 = 230,290.22/x - Step 3: Cross multiply
399,988.46x = 552,122.99 × 230,290.22 - Step 4: Simplify right side
399,988.46x = 127,148,520,922.09 - Step 5: Solve for x
x = 127,148,520,922.09/399,988.46 - Step 6: Final answer
x = 317,880.48
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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.