Finding the Fourth Proportional to 272,946.90, 409,420.34 and 106,618.26
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Solution
The fourth proportional to 272,946.90, 409,420.34 and 106,618.26 is: 159,927.39
Step by Step Solution
- Step 1: Write the proportion equation
272,946.90 : 409,420.34 = 106,618.26 : x - Step 2: Convert to fraction form
272,946.90/409,420.34 = 106,618.26/x - Step 3: Cross multiply
272,946.90x = 409,420.34 × 106,618.26 - Step 4: Simplify right side
272,946.90x = 43,651,684,259.41 - Step 5: Solve for x
x = 43,651,684,259.41/272,946.90 - Step 6: Final answer
x = 159,927.39
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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.