Finding the Fourth Proportional to 348,257.12, 480,391.20 and 218,991.02
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Solution
The fourth proportional to 348,257.12, 480,391.20 and 218,991.02 is: 302,079.56
Step by Step Solution
- Step 1: Write the proportion equation
348,257.12 : 480,391.20 = 218,991.02 : x - Step 2: Convert to fraction form
348,257.12/480,391.20 = 218,991.02/x - Step 3: Cross multiply
348,257.12x = 480,391.20 × 218,991.02 - Step 4: Simplify right side
348,257.12x = 105,201,356,485.07 - Step 5: Solve for x
x = 105,201,356,485.07/348,257.12 - Step 6: Final answer
x = 302,079.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.