Finding the Fourth Proportional to 305,267.56, 421,312.26 and 169,331.74
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Solution
The fourth proportional to 305,267.56, 421,312.26 and 169,331.74 is: 233,701.67
Step by Step Solution
- Step 1: Write the proportion equation
305,267.56 : 421,312.26 = 169,331.74 : x - Step 2: Convert to fraction form
305,267.56/421,312.26 = 169,331.74/x - Step 3: Cross multiply
305,267.56x = 421,312.26 × 169,331.74 - Step 4: Simplify right side
305,267.56x = 71,341,538,069.13 - Step 5: Solve for x
x = 71,341,538,069.13/305,267.56 - Step 6: Final answer
x = 233,701.67
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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.