Finding the Fourth Proportional to 409,949.08, 614,905.91 and 140,101.31
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Solution
The fourth proportional to 409,949.08, 614,905.91 and 140,101.31 is: 210,145.91
Step by Step Solution
- Step 1: Write the proportion equation
409,949.08 : 614,905.91 = 140,101.31 : x - Step 2: Convert to fraction form
409,949.08/614,905.91 = 140,101.31/x - Step 3: Cross multiply
409,949.08x = 614,905.91 × 140,101.31 - Step 4: Simplify right side
409,949.08x = 86,149,122,817.24 - Step 5: Solve for x
x = 86,149,122,817.24/409,949.08 - Step 6: Final answer
x = 210,145.91
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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.