Finding the Fourth Proportional to 207,189.19, 285,817.57 and 130,802.95
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Solution
The fourth proportional to 207,189.19, 285,817.57 and 130,802.95 is: 180,442.72
Step by Step Solution
- Step 1: Write the proportion equation
207,189.19 : 285,817.57 = 130,802.95 : x - Step 2: Convert to fraction form
207,189.19/285,817.57 = 130,802.95/x - Step 3: Cross multiply
207,189.19x = 285,817.57 × 130,802.95 - Step 4: Simplify right side
207,189.19x = 37,385,781,317.83 - Step 5: Solve for x
x = 37,385,781,317.83/207,189.19 - Step 6: Final answer
x = 180,442.72
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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.