Finding the Fourth Proportional to 285,313.03, 393,743.85 and 157,988.63
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Solution
The fourth proportional to 285,313.03, 393,743.85 and 157,988.63 is: 218,030.88
Step by Step Solution
- Step 1: Write the proportion equation
285,313.03 : 393,743.85 = 157,988.63 : x - Step 2: Convert to fraction form
285,313.03/393,743.85 = 157,988.63/x - Step 3: Cross multiply
285,313.03x = 393,743.85 × 157,988.63 - Step 4: Simplify right side
285,313.03x = 62,207,051,432.43 - Step 5: Solve for x
x = 62,207,051,432.43/285,313.03 - Step 6: Final answer
x = 218,030.88
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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.