Finding the Fourth Proportional to 293,647.91, 405,199.95 and 172,762.70
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Solution
The fourth proportional to 293,647.91, 405,199.95 and 172,762.70 is: 238,392.43
Step by Step Solution
- Step 1: Write the proportion equation
293,647.91 : 405,199.95 = 172,762.70 : x - Step 2: Convert to fraction form
293,647.91/405,199.95 = 172,762.70/x - Step 3: Cross multiply
293,647.91x = 405,199.95 × 172,762.70 - Step 4: Simplify right side
293,647.91x = 70,003,437,401.87 - Step 5: Solve for x
x = 70,003,437,401.87/293,647.91 - Step 6: Final answer
x = 238,392.43
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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.