Finding the Fourth Proportional to 292,043.13, 438,089.28 and 92,359.08
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Solution
The fourth proportional to 292,043.13, 438,089.28 and 92,359.08 is: 138,546.40
Step by Step Solution
- Step 1: Write the proportion equation
292,043.13 : 438,089.28 = 92,359.08 : x - Step 2: Convert to fraction form
292,043.13/438,089.28 = 92,359.08/x - Step 3: Cross multiply
292,043.13x = 438,089.28 × 92,359.08 - Step 4: Simplify right side
292,043.13x = 40,461,522,858.66 - Step 5: Solve for x
x = 40,461,522,858.66/292,043.13 - Step 6: Final answer
x = 138,546.40
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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.