Finding the Fourth Proportional to 380,986.99, 525,768.09 and 208,920.61
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Solution
The fourth proportional to 380,986.99, 525,768.09 and 208,920.61 is: 288,313.75
Step by Step Solution
- Step 1: Write the proportion equation
380,986.99 : 525,768.09 = 208,920.61 : x - Step 2: Convert to fraction form
380,986.99/525,768.09 = 208,920.61/x - Step 3: Cross multiply
380,986.99x = 525,768.09 × 208,920.61 - Step 4: Simplify right side
380,986.99x = 109,843,788,766.92 - Step 5: Solve for x
x = 109,843,788,766.92/380,986.99 - Step 6: Final answer
x = 288,313.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.