Finding the Fourth Proportional to 432,743.69, 649,135.58 and 133,237.68
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Solution
The fourth proportional to 432,743.69, 649,135.58 and 133,237.68 is: 199,862.69
Step by Step Solution
- Step 1: Write the proportion equation
432,743.69 : 649,135.58 = 133,237.68 : x - Step 2: Convert to fraction form
432,743.69/649,135.58 = 133,237.68/x - Step 3: Cross multiply
432,743.69x = 649,135.58 × 133,237.68 - Step 4: Simplify right side
432,743.69x = 86,489,318,018.47 - Step 5: Solve for x
x = 86,489,318,018.47/432,743.69 - Step 6: Final answer
x = 199,862.69
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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.