Finding the Fourth Proportional to 278,670.10, 384,588.45 and 157,832.88
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Solution
The fourth proportional to 278,670.10, 384,588.45 and 157,832.88 is: 217,822.80
Step by Step Solution
- Step 1: Write the proportion equation
278,670.10 : 384,588.45 = 157,832.88 : x - Step 2: Convert to fraction form
278,670.10/384,588.45 = 157,832.88/x - Step 3: Cross multiply
278,670.10x = 384,588.45 × 157,832.88 - Step 4: Simplify right side
278,670.10x = 60,700,702,678.24 - Step 5: Solve for x
x = 60,700,702,678.24/278,670.10 - Step 6: Final answer
x = 217,822.80
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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.