Finding the Fourth Proportional to 219,317.40, 328,538.70 and 125,713.80
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Solution
The fourth proportional to 219,317.40, 328,538.70 and 125,713.80 is: 188,319.98
Step by Step Solution
- Step 1: Write the proportion equation
219,317.40 : 328,538.70 = 125,713.80 : x - Step 2: Convert to fraction form
219,317.40/328,538.70 = 125,713.80/x - Step 3: Cross multiply
219,317.40x = 328,538.70 × 125,713.80 - Step 4: Simplify right side
219,317.40x = 41,301,848,424.06 - Step 5: Solve for x
x = 41,301,848,424.06/219,317.40 - Step 6: Final answer
x = 188,319.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.