Finding the Fourth Proportional to 545,136.42, 817,647.12 and 145,817.49
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Solution
The fourth proportional to 545,136.42, 817,647.12 and 145,817.49 is: 218,710.85
Step by Step Solution
- Step 1: Write the proportion equation
545,136.42 : 817,647.12 = 145,817.49 : x - Step 2: Convert to fraction form
545,136.42/817,647.12 = 145,817.49/x - Step 3: Cross multiply
545,136.42x = 817,647.12 × 145,817.49 - Step 4: Simplify right side
545,136.42x = 119,227,250,744.13 - Step 5: Solve for x
x = 119,227,250,744.13/545,136.42 - Step 6: Final answer
x = 218,710.85
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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.