Finding the Fourth Proportional to 305,483.19, 421,555.76 and 169,523.07
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Solution
The fourth proportional to 305,483.19, 421,555.76 and 169,523.07 is: 233,935.70
Step by Step Solution
- Step 1: Write the proportion equation
305,483.19 : 421,555.76 = 169,523.07 : x - Step 2: Convert to fraction form
305,483.19/421,555.76 = 169,523.07/x - Step 3: Cross multiply
305,483.19x = 421,555.76 × 169,523.07 - Step 4: Simplify right side
305,483.19x = 71,463,423,655.99 - Step 5: Solve for x
x = 71,463,423,655.99/305,483.19 - Step 6: Final answer
x = 233,935.70
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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.