Finding the Fourth Proportional to 409,564.76, 614,347.34 and 129,103.88
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Solution
The fourth proportional to 409,564.76, 614,347.34 and 129,103.88 is: 193,655.88
Step by Step Solution
- Step 1: Write the proportion equation
409,564.76 : 614,347.34 = 129,103.88 : x - Step 2: Convert to fraction form
409,564.76/614,347.34 = 129,103.88/x - Step 3: Cross multiply
409,564.76x = 614,347.34 × 129,103.88 - Step 4: Simplify right side
409,564.76x = 79,314,621,544.42 - Step 5: Solve for x
x = 79,314,621,544.42/409,564.76 - Step 6: Final answer
x = 193,655.88
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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.