Finding the Fourth Proportional to 254,881.13, 351,730.24 and 138,592.09
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Solution
The fourth proportional to 254,881.13, 351,730.24 and 138,592.09 is: 191,253.97
Step by Step Solution
- Step 1: Write the proportion equation
254,881.13 : 351,730.24 = 138,592.09 : x - Step 2: Convert to fraction form
254,881.13/351,730.24 = 138,592.09/x - Step 3: Cross multiply
254,881.13x = 351,730.24 × 138,592.09 - Step 4: Simplify right side
254,881.13x = 48,747,027,986.85 - Step 5: Solve for x
x = 48,747,027,986.85/254,881.13 - Step 6: Final answer
x = 191,253.97
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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.