Finding the Fourth Proportional to 343,493.68, 473,987.40 and 190,529.20
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Solution
The fourth proportional to 343,493.68, 473,987.40 and 190,529.20 is: 262,911.50
Step by Step Solution
- Step 1: Write the proportion equation
343,493.68 : 473,987.40 = 190,529.20 : x - Step 2: Convert to fraction form
343,493.68/473,987.40 = 190,529.20/x - Step 3: Cross multiply
343,493.68x = 473,987.40 × 190,529.20 - Step 4: Simplify right side
343,493.68x = 90,308,440,132.08 - Step 5: Solve for x
x = 90,308,440,132.08/343,493.68 - Step 6: Final answer
x = 262,911.50
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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.