Finding the Fourth Proportional to 172,816.18, 238,369.64 and 150,115.63
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Solution
The fourth proportional to 172,816.18, 238,369.64 and 150,115.63 is: 207,058.20
Step by Step Solution
- Step 1: Write the proportion equation
172,816.18 : 238,369.64 = 150,115.63 : x - Step 2: Convert to fraction form
172,816.18/238,369.64 = 150,115.63/x - Step 3: Cross multiply
172,816.18x = 238,369.64 × 150,115.63 - Step 4: Simplify right side
172,816.18x = 35,783,007,781.91 - Step 5: Solve for x
x = 35,783,007,781.91/172,816.18 - Step 6: Final answer
x = 207,058.20
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1.5x scale
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.