Finding the Fourth Proportional to 278,740.53, 384,651.05 and 157,888.53
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Solution
The fourth proportional to 278,740.53, 384,651.05 and 157,888.53 is: 217,880.00
Step by Step Solution
- Step 1: Write the proportion equation
278,740.53 : 384,651.05 = 157,888.53 : x - Step 2: Convert to fraction form
278,740.53/384,651.05 = 157,888.53/x - Step 3: Cross multiply
278,740.53x = 384,651.05 × 157,888.53 - Step 4: Simplify right side
278,740.53x = 60,731,988,058.01 - Step 5: Solve for x
x = 60,731,988,058.01/278,740.53 - Step 6: Final answer
x = 217,880.00
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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.