Finding the Fourth Proportional to 388,432.69, 536,051.59 and 214,009.99
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Solution
The fourth proportional to 388,432.69, 536,051.59 and 214,009.99 is: 295,341.76
Step by Step Solution
- Step 1: Write the proportion equation
388,432.69 : 536,051.59 = 214,009.99 : x - Step 2: Convert to fraction form
388,432.69/536,051.59 = 214,009.99/x - Step 3: Cross multiply
388,432.69x = 536,051.59 × 214,009.99 - Step 4: Simplify right side
388,432.69x = 114,720,393,540.23 - Step 5: Solve for x
x = 114,720,393,540.23/388,432.69 - Step 6: Final answer
x = 295,341.76
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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.