Finding the Fourth Proportional to 432,936.09, 649,373.36 and 133,385.54
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Solution
The fourth proportional to 432,936.09, 649,373.36 and 133,385.54 is: 200,068.82
Step by Step Solution
- Step 1: Write the proportion equation
432,936.09 : 649,373.36 = 133,385.54 : x - Step 2: Convert to fraction form
432,936.09/649,373.36 = 133,385.54/x - Step 3: Cross multiply
432,936.09x = 649,373.36 × 133,385.54 - Step 4: Simplify right side
432,936.09x = 86,617,012,371.42 - Step 5: Solve for x
x = 86,617,012,371.42/432,936.09 - Step 6: Final answer
x = 200,068.82
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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.