Finding the Fourth Proportional to 361,479.90, 542,116.17 and 139,812.06
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Solution
The fourth proportional to 361,479.90, 542,116.17 and 139,812.06 is: 209,677.99
Step by Step Solution
- Step 1: Write the proportion equation
361,479.90 : 542,116.17 = 139,812.06 : x - Step 2: Convert to fraction form
361,479.90/542,116.17 = 139,812.06/x - Step 3: Cross multiply
361,479.90x = 542,116.17 × 139,812.06 - Step 4: Simplify right side
361,479.90x = 75,794,378,487.01 - Step 5: Solve for x
x = 75,794,378,487.01/361,479.90 - Step 6: Final answer
x = 209,677.99
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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.