Finding the Fourth Proportional to 328,903.81, 493,355.81 and 115,829.06
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Solution
The fourth proportional to 328,903.81, 493,355.81 and 115,829.06 is: 173,743.62
Step by Step Solution
- Step 1: Write the proportion equation
328,903.81 : 493,355.81 = 115,829.06 : x - Step 2: Convert to fraction form
328,903.81/493,355.81 = 115,829.06/x - Step 3: Cross multiply
328,903.81x = 493,355.81 × 115,829.06 - Step 4: Simplify right side
328,903.81x = 57,144,937,540.63 - Step 5: Solve for x
x = 57,144,937,540.63/328,903.81 - Step 6: Final answer
x = 173,743.62
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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.