Finding the Fourth Proportional to 432,431.30, 648,708.95 and 132,936.99
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Solution
The fourth proportional to 432,431.30, 648,708.95 and 132,936.99 is: 199,424.55
Step by Step Solution
- Step 1: Write the proportion equation
432,431.30 : 648,708.95 = 132,936.99 : x - Step 2: Convert to fraction form
432,431.30/648,708.95 = 132,936.99/x - Step 3: Cross multiply
432,431.30x = 648,708.95 × 132,936.99 - Step 4: Simplify right side
432,431.30x = 86,237,414,534.38 - Step 5: Solve for x
x = 86,237,414,534.38/432,431.30 - Step 6: Final answer
x = 199,424.55
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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.