Finding the Fourth Proportional to 292,455.65, 438,712.38 and 121,642.31
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Solution
The fourth proportional to 292,455.65, 438,712.38 and 121,642.31 is: 182,475.48
Step by Step Solution
- Step 1: Write the proportion equation
292,455.65 : 438,712.38 = 121,642.31 : x - Step 2: Convert to fraction form
292,455.65/438,712.38 = 121,642.31/x - Step 3: Cross multiply
292,455.65x = 438,712.38 × 121,642.31 - Step 4: Simplify right side
292,455.65x = 53,365,985,135.24 - Step 5: Solve for x
x = 53,365,985,135.24/292,455.65 - Step 6: Final answer
x = 182,475.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.