Finding the Fourth Proportional to 391,599.13, 540,302.62 and 225,985.14
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Solution
The fourth proportional to 391,599.13, 540,302.62 and 225,985.14 is: 311,799.37
Step by Step Solution
- Step 1: Write the proportion equation
391,599.13 : 540,302.62 = 225,985.14 : x - Step 2: Convert to fraction form
391,599.13/540,302.62 = 225,985.14/x - Step 3: Cross multiply
391,599.13x = 540,302.62 × 225,985.14 - Step 4: Simplify right side
391,599.13x = 122,100,363,223.07 - Step 5: Solve for x
x = 122,100,363,223.07/391,599.13 - Step 6: Final answer
x = 311,799.37
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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.