Finding the Fourth Proportional to 387,829.98, 581,744.99 and 121,611.94
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Solution
The fourth proportional to 387,829.98, 581,744.99 and 121,611.94 is: 182,417.92
Step by Step Solution
- Step 1: Write the proportion equation
387,829.98 : 581,744.99 = 121,611.94 : x - Step 2: Convert to fraction form
387,829.98/581,744.99 = 121,611.94/x - Step 3: Cross multiply
387,829.98x = 581,744.99 × 121,611.94 - Step 4: Simplify right side
387,829.98x = 70,747,136,819.18 - Step 5: Solve for x
x = 70,747,136,819.18/387,829.98 - Step 6: Final answer
x = 182,417.92
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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.