Finding the Fourth Proportional to 251,923.42, 347,670.04 and 138,746.14
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Solution
The fourth proportional to 251,923.42, 347,670.04 and 138,746.14 is: 191,478.33
Step by Step Solution
- Step 1: Write the proportion equation
251,923.42 : 347,670.04 = 138,746.14 : x - Step 2: Convert to fraction form
251,923.42/347,670.04 = 138,746.14/x - Step 3: Cross multiply
251,923.42x = 347,670.04 × 138,746.14 - Step 4: Simplify right side
251,923.42x = 48,237,876,043.65 - Step 5: Solve for x
x = 48,237,876,043.65/251,923.42 - Step 6: Final answer
x = 191,478.33
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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.