Finding the Fourth Proportional to 293,655.75, 405,210.55 and 172,770.45
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Solution
The fourth proportional to 293,655.75, 405,210.55 and 172,770.45 is: 238,402.99
Step by Step Solution
- Step 1: Write the proportion equation
293,655.75 : 405,210.55 = 172,770.45 : x - Step 2: Convert to fraction form
293,655.75/405,210.55 = 172,770.45/x - Step 3: Cross multiply
293,655.75x = 405,210.55 × 172,770.45 - Step 4: Simplify right side
293,655.75x = 70,008,409,068.25 - Step 5: Solve for x
x = 70,008,409,068.25/293,655.75 - Step 6: Final answer
x = 238,402.99
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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.